Bozdoğan Kemeri (Valens Su Kemeri)

A Roman aqueduct spanning the valley between the Fatih and Beyazıt hills. According to the TDV Encyclopedia of Islam it is generally attributed to Emperor Valens and dated to 368-378; it reaches 971 metres in length and 28-29 metres above the ground, and part of it has two tiers of arches. After the conquest it was repaired under Mehmed the Conqueror, Süleyman and Mustafa II, carried the Halkalı and Kırkçeşme waters and supplied the Süleymaniye Mosque and Topkapı Palace until the 20th century. Atatürk Bulvarı now runs beneath its arches.