The Grand Bazaar (Kapalicarsi) in Istanbul is one of the largest indoor markets in the world with its 60 streets and 5,000 shops, and attracts between 250,000 and 400,000 visitors daily. It is well known for its jewellery, hand-painted ceramics, carpets, embroideries, spices and antique shops.
The structure was known in Byzantium as the basilica Cistern, Justinian was the founder of the largest underground cistern, built after the Nika Revolt in 532.The number of the inhabitants of Constantinople increased and bring a problem of water supply.
The Hippodrome of Constantinople (Turkish: SultanahmetMeydani, At Meydani) was a circus that was the sporting and social centre of Constantinople, capital of the Byzantine Empire. Today it is a square named SultanahmetMeydani (Sultan Ahmet Square) in the Turkish city of Istanbul, with only a few fragments of the original structure surviving.
Built by the greatest known architect of the Ottoman Empire – Sinan, between 1550 -1557, Suleymaniye Mosque stands as undoubtedly his greatest work in Istanbul. Sultan Suleyman the Magnificent, who enjoyed the longest reign in the Ottoman Empire, between 1520-1566, gave the order for its construction.