For 10 points, name this city located on the Bosporus Strait and home to the Hagia Sophia, which fell to the Ottoman Empire in 1453.
One empire that ruled in this city moved its residence to the Dolmabahce Palace (DOLE-mah-BAH-chay), which replaced this city's Topkapi Palace. Another structure in this city was built by Anthemius of Tralles and Isidorus of Miletus, and that building was converted into a mosque after this city fell. For 10 points, name this city located on the Bosporus Strait and home to the Hagia Sophia, which fell to the Ottoman Empire in 1453.
One empire that ruled in this city moved its residence to the Dolmabahce Palace (DOLE-mah-BAH-chay), which replaced this city's Topkapi Palace.
{Constantinople} [or {Istanbul}]