The palace of Mehmed II was built in 1469. The location was chosen by strategic reasons. The Sultan could overlook the harbor and control the Bosphorus with his cannons. The Topkapi Palace is famous for it's luxurious harem and stunning splendor.
The "Hagia Sophia" (Church of Holy Wisdom) was built by the roman Emperor Justinian, who ruled from 527 until his death in 565. For centuries the Hagia Sophia was the world's largest church. The dome has a diameter of 32 m. After the conquest of Constantinople by the Ottomans in 1453, the Hagia Sophia became the main mosque of Istanbul.
Emperor Justinian also built this giant cistern with 336 columns, which could take 80,000 cubic meters of water. Tourists can visit the ancient water tank next to the Hagia Sophia.
"Suleyman the Magnificent" built this mosque in 1557. The mosque, with its numerous domes and light-filled rooms, is an architectural masterpiece of "Mimar Sinan", the most famous architects of the Ottomans, whose tomb is located here.