- 10 Karakoy Istanbul
- A'jia Hotel
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- Ada Hotel Istanbul
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- Ahmet Efendi Konagi
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- Avantgarde Levent Hotel - Boutique Class
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- Bentley Hotel Bosphorus - Special Class
- Berjer Boutique Hotel & Spa
- Best Nobel Hotel 2
- Best Western Empire Palace
- Beyoglu Huzur Hotel
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- Birlik Apart Hotel
- Biz Cevahir Hotel Sultanahmet
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- Bosphorus Palace Hotel - Special Class
- Boss Hotel Sultanahmet
- Boutique Saint Sophia
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- Burgu Arjaan By Rotana
- Business Life Boutique Hotel & Spa
- By Murat Royal Hotel Galata
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- CVK Park Bosphorus Hotel Istanbul
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- Carlton Hotel
- Cartoon Hotel
- Celal Sultan Hotel Special Class
- Centro WestSide
- Cevahir Hotel Istanbul Asia
- Cheers Hostel
- Cheers Lighthouse
- Cihangir Hotel
- Cihangir Palace Hotel
- Ciragan Palace Kempinski
- City Center Hotel Taksim
- Cityloft 161
- Cityloft 36
- Cityloft 81
- Clarion Hotel Golden Horn
- Clarion Hotel Istanbul Mahmutbey
- Collage Pera Hotel
- Concept Nisantasi Hotels & Spa
- Conrad Istanbul Bosphorus
- Corinne Art & Boutique Hotel
- Corner Hot
- Crowne Plaza Istanbul - Asia
- Crowne Plaza Istanbul - Florya
- Crowne Plaza Istanbul - Harbiye
- Crowne Plaza Istanbul - Old City
- Crowne Plaza Istanbul - Oryapark
- Cumbali Suite Hotel
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- Daru Sultan Hotels Galata
- Dedeman Bostanci Istanbul Hotel & Convention Center
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- Delta Hotel Istanbul
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- Deluxe Golden Horn Sultanahmet Hotel
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- Derpa Suite Hotel Osmanbey
- Dersaadet Hotel Istanbul
- Dila Hotel
- Dilhayat Kalfa Hotel
- Divalis Hotel
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- Divan Istanbul City
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- Doruk Palas Hotel
- Dosso Dossi Hotels & Spa Downtown
- Dosso Dossi Hotels & Spa Golden Horn
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- DoubleTree by Hilton Istanbul - Avcilar
- DoubleTree by Hilton Istanbul - Moda
- DoubleTree by Hilton Istanbul - Old Town
- DoubleTree by Hilton Istanbul - Piyalepasa
- DoubleTree by Hilton Istanbul - Sirkeci
- DoubleTree by Hilton Istanbul Esentepe
- DoubleTree by Hilton Istanbul Topkapi
- DoubleTree by Hilton Istanbul Umraniye
- Edition Old City Hotel
- Ekinci Residence
- Element Residence
- Elemet Taksim Suites
- Elite World Comfy Istanbul Taksim
- Elite World Europe Hotel
- Elite World Grand Istanbul Kucukyali
- Elite World Istanbul Florya
- Elite World Istanbul Taksim
- Elysium Styles Taksim
- Emirtimes Hotel Tuzla
- Empire Suite Hotel
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- Enderun Hotel Istanbul
- Endless Art Hotel
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- Eps Suite
- Eresin Hotels Sultanahmet - Boutique Class
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- Erten Konak
- Erzurumlu Hotel
- Eterno Hotel
- Ethnica Hotel Old City
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- Express Inci Airport Hotel
- Fairmont Quasar Istanbul
- Faros Hotel Old City - Special Category
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- Fer Hotel
- Ferman Hotel Old City -Special Category
- Feronya Hotel
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- Four Seasons Hotel Istanbul at Sultanahmet
- Four Seasons Hotel Istanbul at the Bosphorus
- Fraser Place Antasya Istanbul
- Fraser Place Anthill Istanbul
- Fuar Hotel
- Fuat Pasa Yalisi - Special Category Bosphorus
- GLK PREMIER Regency Suites & Spa
- Galata Times Hotel
- Galatower Hotel
- Gallery Residence and Boutique Hotel
- Gen Suites
- Genova Hotel
- Germir Palas Hotel - Special Class
- Gezi Hotel Bosphorus, Istanbul, a Member of Design Hotels
- Gk Regency Suites Hotel
- Glamour Hotel Istanbul Sirkeci
- Glens Palas Istanbul
- Glk Premier Acropol Suites & Spa
- Glk Premier The Home Suites & Spa
- Golden Age Hotel Taksim
- Golden Ak Marmara Hotel
- Golden Horn Hotel - Special Class
- Golden Horn Istanbul Hotel
- Golden Lounge Hotel
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- Golden Royal Hotel & Spa
- Golden Tulip Istanbul Bayrampasa
- Gorrion Hotel Istanbul
- Grand Anka Hotel
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- Grand Asiyan Hotel
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- Grand Beyazit Hotel Old City
- Grand Cevahir Hotel Convention Center
- Grand Hilarium Hotel
- Grand Hotel De Pera
- Grand Hotel Gulsoy
- Grand Hotel Halic
- Grand Hotel Palmiye
- Grand Hotel de Londres
- Grand Hyatt Istanbul
- Grand Istanbul Airport Hotel
- Grand Makel Hotel Topkapi
- Grand Mark Hotel
- Grand Palace Hotel
- Grand Prince Hotel Taksim
- Grand S Hotel
- Grand Sagcanlar Hotel
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- Great Fortune Hotel & Spa
- Gulhane Corner Hotel
- Gulhanepark Hotel & Spa
- Gunes Hotel Merter
- Gökçe Pansiyon - Adult Only - Hostel
- HHK Hotel
- HHK Hotel Downtown
- Hagia Sofia Mansions Istanbul, Curio Collection by Hilton
- Hampton by Hilton Istanbul Atakoy
- Hampton by Hilton Istanbul Kayasehir
- Hampton by Hilton Istanbul Kurtkoy
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- Han Hotel
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- Harbiye Residence
- Hilton Garden Inn Istanbul Ataturk Airport
- Hilton Garden Inn Istanbul Beylikduzu
- Hilton Istanbul Bakirkoy
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- Hilton Istanbul Bosphorus
- Hilton Istanbul Kozyatagi
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- Hippodrome Hotel
- Holiday Inn Express Istanbul - Altunizade
- Holiday Inn Express Istanbul - Atakoy Metro
- Holiday Inn Istanbul - Kadikoy
- Holiday Inn Istanbul - Old City
- Holiday Inn Istanbul - Sisli
- Holiday Inn Istanbul City
- Home Stay Home Sisli
- Hotel Agan
- Hotel Amira Istanbul
- Hotel Arcadia Blue Istanbul
- Hotel Bazaar
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- Hotel Historia-Special Category
- Hotel Ibrahim Pasha
- Hotel Ilkay
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- Hotel Momento - Special Category
- Hotel Nena
- Hotel Niles Istanbul
- Hotel Olimpiyat
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- Hotel Suadiye
- Hotel Sultanahmet
- Hotel Sultanhill
- Hotel Sultania Boutique Class
- Hotel The Pera Hill
- Hotel The Public - Special Category
- Hotel Topkapi
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- Hotel Uyan-Special Category
- Hotel V Plus Taksim
- Hotel Venera
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- Hotel Zurich Istanbul
- Hotellino
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- Hurry Inn Merter Istanbul
- Hush Hostel Lounge
- Hyatt Centric Levent Istanbul
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- Ibis Istanbul Esenyurt
- Icon Istanbul Hotel
- Idylle Hotel
- Ilkbal Deluxe Hotel & Spa
- Innova Sultanahmet Istanbul
- Innpera Hotel
- Intercontinental Istanbul, An IHG Hotel
- Isg Sabiha Gökçen Airport Hotel
- Istanbul Airport Durusu Club Hotel
- Istanbul Comfort Hotel
- Istanbul Dedem Hotel 1
- Istanbul Dora Hotel
- Istanbul Golden City Hotel
- Istanbul Gonen Hotel
- Istanbul Marriott Hotel Asia
- Istanbul Marriott Hotel Pendik
- Istanbul Marriott Hotel Sisli
- Istanbul Panorama Hotel
- Istanbul Royal Hotel
- Istanbul Sirkeci Hotel
- Juliet Rooms & Kitchen
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- Kadikoy Park Suites
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- Kafkas Hotel Istanbul
- Kalyon Hotel Istanbul
- Kartal Palace Taksim Square
- Kent Hotel Istanbul
- Klas Hotel
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- L'Isola Guesthouse - Adults Only
- La bella hotel
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- Lalahan
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- Laleli Gonen Hotel
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- Lazzoni Hotel
- Le Méridien Istanbul Etiler
- Le Safran Suite Hotel
- Legacy Ottoman Hotel
- Levanten Hostel
- Levni Hotel & Spa - Special Category
- Limak Eurasia Luxury Hotel
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- Lion Hotel
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- Lotus Hotel
- Louis Appartements Galata
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- Maproom Boutique Hotel
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- Martinenz Hotel
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- Mayi Hotel
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- Mercure Istanbul Altunizade
- Mercure Istanbul Bakirkoy
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- Meroddi Bagdatliyan Hotel
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- Mina Hotel - Special Category
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- Molton Monapart Mecidiyekoy
- Momento Golden Horn Hotel
- Mr Cas Hotels - Special Class
- Mr. Bird Hotel
- Mukarnas Taksim Hotel
- My Assos Hotel
- My Dora Hotel
- My Palace Rooms
- Myy Homes
- Mövenpick Hotel Istanbul Bosphorus
- Mövenpick Istanbul Golden Horn
- Nabu Hotel
- Nagehan Hotel Old City
- Naz City Hotel Taksim
- Nea Suites Old City
- Neorion Hotel - Special Class
- Nevv Bosphorus Hotel & Suites
- New Fatih Hotel
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- Nidya Hotel Esenyurt
- Nidya Hotel Galataport
- Nippon Hotel
- Nordstern Hotel Galata
- Nova Plaza Crystal Hotel & Spa
- Nova Plaza Orion Hotel
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- Nova Plaza Taksim Square
- Novotel Istanbul Karakoy
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- Nowy Efendi Hotel - Special Category
- Occidental Taksim
- Old City Sultanahmet
- Old City Viva Hotel
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- Opera Hotel Bosphorus
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- Orient Express & Spa by Orka Hotels
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- Orka Taksim Suites & Hotel
- Osmanbey Fatih Hotel
- Ottoman Hotel Imperial-Special Category
- Ottoman Hotel Park - Special Category
- Ottoman's Life Hotel Deluxe
- Ottopera Hotel
- Ozbek Hotel
- P Galata Hotel - Special Category
- Palazzo Donizetti Hotel - Special Class
- Park By Clover
- Park Dedeman Bostanci Hotel
- Park Hyatt Istanbul - Macka Palas
- Park Inn By Radisson Istanbul Atasehir
- Park Inn by Radisson Istanbul Airport, Odayeri
- Park Inn by Radisson Istanbul Asia Kavacik
- Park Inn by Radisson Istanbul Ataturk Airport
- Park Star Hotel Taksim
- Pendik Marine Hotel
- Pera Center Hotel
- Pera Life
- Pera Luna Residence
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- Pianoforte by Febor Hotels&Spa
- Pierre Loti Hotel Old City- Special Category
- Piya Sport Hotel
- Point Hotel Barbaros
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- Port Bosphorus Hotel
- Premist Hotels Sultanahmet
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- Prestige Hotel Old City
- Promise Hotel
- Pullman Istanbul Hotel & Convention Center
- Radisson Blu Bosphorus Hotel, Istanbul
- Radisson Blu Hotel & Spa, Istanbul Tuzla
- Radisson Blu Hotel Istanbul Ottomare
- Radisson Blu Hotel Vadistanbul
- Radisson Blu Hotel, Istanbul Asia, Turkey
- Radisson Blu Hotel, Istanbul Pera
- Radisson Blu Hotel, Istanbul Sisli
- Radisson Hotel Istanbul Sultanahmet
- Raffles Istanbul
- Ramada By Wyndham Istanbul Taksim
- Ramada Encore By Wyndham Istanbul Basin Express
- Ramada Encore by Wyndham Istanbul Bayrampasa
- Ramada Hotel & Suites by Wyndham Istanbul Merter
- Ramada Hotel & Suites by Wyndham Istanbul Sisli
- Ramada Plaza by Wyndham Istanbul Atakoy
- Ramada Plaza by Wyndham Istanbul City Center
- Ramada Plaza by Wyndham Istanbul Tekstilkent
- Ramada by Wyndham Istanbul Alibeykoy
- Ramada by Wyndham Istanbul Florya
- Ramada by Wyndham Istanbul Golden Horn
- Ramada by Wyndham Istanbul Grand Bazaar
- Ramada by Wyndham Istanbul Old City
- Rast Hotel Sultanahmet
- Regard Hotel
- Renaissance Istanbul Polat Bosphorus Hotel
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- Renata Boutique Hotel - Boutique Class
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- Reydel Hotel
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- Room Mate Emir
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- Sarnic Hotel & Sarnic Premier Hotel - Ottoman Mansion
- Sed Hotel
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- Sevcan Hotel
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- Seven Hills Hotel - Special Class
- Shangri-La Bosphorus, Istanbul
- Sheraton Grand Istanbul Atasehir
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- Sheraton Istanbul City Center
- Sheraton Istanbul Levent
- Sheriff Royal Suite
- Sipahi
- Sirkeci Emek Hotel
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- Sirkeci Mansion
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- Sogut Hotel Old City
- Soho House Istanbul
- Sokullu Pasa Hotel - Special Class
- Somerset Maslak Istanbul
- Sorriso Hotel
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- Splendid Palace
- Stanpoli Hostel
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- Stay Inn Taksim Hostel
- Style Hotel Sisli
- Style Star Hotel Cihangir
- Sub Karakoy - Special Category
- Sultan Hostel & Guesthouse
- Sultan Palace Hotel
- Sultan Tughra Hotel
- Sultanahmet Palace Hotel
- Sultanhan Hotel - Special Class
- Sultans Hotel
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- Sumahan on the Water - Special Class
- Sumengen Hotel
- Sur Hotel Sultanahmet
- Sura Design Hotel & Suites
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- Surmeli Istanbul Hotel
- Swissotel The Bosphorus Istanbul
- Symbola Bosphorus Istanbul
- TRYP by Wyndham Istanbul Basin Ekspres
- TRYP by Wyndham Istanbul Taksim
- Taba Luxury Suites and Hotel
- Taksim City Hostel
- Taksim Diamond Hotel
- Taksim Gonen Hotel
- Taksim Green House Hostel
- Taksim Line Hotel
- Taksim Metropark Hotel
- Taksim Mood
- Taksim Pera Orient Hotel
- Taksim Santa Lucia Hotel
- Taksim Square Hotel
- Taksim Star Hotel
- Tan Hotel - Special Class
- Tango Arjaan by Rotana Istanbul Asia
- Taxim Hill Hotel
- Taxim Lounge Hotel Special Category
- Taxim Suites Residences Istanbul
- Taxim Trend Suites
- Taximist Hotel
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- Tempo Hotel 4Levent Istanbul
- Tempo Suites Airport
- The Artisan Istanbul MGallery
- The Bank Hotel Istanbul, a Member of Design Hotels
- The Byzantium Suites Hotel & Spa
- The Central Hotel
- The Central Palace Taksim
- The Clock Suites
- The Constantine Hotel
- The Craton Hotel
- The Elysium Taksim Special Class
- The Empress Theodora Hotel
- The G Hotels Istanbul
- The Galata Istanbul Hotel - MGallery
- The Grand Mira Business Hotel
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- The Green Park Bostanci
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- The Hera Premium Hotels
- The Hotel Beyaz Saray
- The House Hotel Bomonti
- The Magnaura Palace Hotel
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- The Meretto Hotel Istanbul Old City
- The Meretto Hotel Laleli
- The Milltown Sisli
- The Parma Hotel Taksim
- The Peak Hotel & Spa
- The Place Suites by Cey
- The Ritz-Carlton Istanbul
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- The Stay Bosphorus
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- The Time Hotel Old City
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- Titanic Business Kartal
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- Tryp By Wyndham Istanbul Sancaktepe
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- VVR Hotel
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- Viva Deluxe Hotel
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- Volley Hotel Istanbul
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- White Monarch Hotel
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- Wish More Hotel Istanbul
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- Wow Airport Hotel
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- Wyndham Grand Istanbul Europe
- Wyndham Grand Istanbul Kalamis Marina Hotel
- Wyndham Grand Istanbul Levent
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- Yeni Hotel
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- Zin D Home Dudullu Suits
- ibis Istanbul Zeytinburnu
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