The Rumelihisarı was built on the banks of the Bosporus Strait. What city are we in?
A Istanbul
B Cairo
C Athens
Built in the 15th century, the Rumelihisarı (aka Rumeli Fortress) in Istanbul played a crucial role in the Ottoman siege and conquest of the region. Rumeli, along with the Anatolian Fortress on the other side of the Bosporus Strait, choked off all naval traffic through the waterway.
The correct answer is Istanbul.