Romanus Gate

11 m · Constantinople, the capital city of the Byzantine Empire, was captured by the Ottoman Empire on 29 May 1453 as part of the culmination of a 53-day siege which had begun on 6 April.

11 m

168 m

258 m

303 m

315 m

393 m

434 m

479 m

528 m

549 m

555 m

598 m

634 m

657 m

677 m

734 m

735 m

750 m

761 m · The walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built.

783 m

841 m

843 m

911 m