• Hagia Sophia
  

  
  Hagia Sophia, built in 557, is a former Greek Orthodox basilica, later an imperial mosque, and now a museum. Famous in particular for its massive dome, it is considered the epitome of Byzantine architecture. It remained the world's largest cathedral for nearly a thousand years.
  
  

• Sultan Ahmed Mosque
  

  
  The Sultan Ahmed Mosque is a historic mosque in Istanbul. The mosque is popularly known as the Blue Mosque for the blue tiles adorning the walls of its interior. It was built from 1609 to 1616, during the rule of Ahmed I.
  
  

• Topkapı Palace
  

  
  The Topkapı Palace is a large palace in Istanbul, Turkey, that was the primary residence of the Ottoman Sultans for approximately 400 years of their 624-year reign.
  
  

• Grand Bazaar
  

  
  The Grand Bazaar in Istanbul is one of the largest and oldest covered markets in the world, with 61 covered streets and over 3,000 shops which attract between 250,000 and 400,000 visitors daily.
  
  

• Basilica Cistern
  

  
  The Basilica Cistern, is the largest of several hundred ancient underground cisterns that lie beneath the city of Istanbul. The cistern was built in the 6th century during the reign of Byzantine Emperor Justinian. 7,000 slaves were involved in the construction of the cistern
  
  

• Bosphorus Cruise
  

  
  The official Bosphorous cruise offers a three hour cruise for (90 minutes each way with a break of several hours at Anadoli Kavagi) or a shorter non-stop 2 hour cruise. At In Anadoli Kavagi you can walk to the Yoros Kalesi, a strategic castle overlooking and controlling the entry to the Black Sea.
  
  

• Süleymaniye Mosque
  

  
  The Süleymaniye Mosque is an Ottoman imperial mosque located on the Third Hill of Istanbul, Turkey. It is the largest mosque in the city, and one of the best-known sights of Istanbul.
  
  

• Dolmabahçe Palace
  

  
  Dolmabahçe Palace located in the Beşiktaş district of Istanbul, Turkey, on the European coastline of the Bosphorus strait, served as the main administrative center of the Ottoman Empire from 1856 ...
  
  

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