What is the physical setting of the city of Constantinople?

Constantinople, now known as Istanbul, is situated on the Bosporus Strait, which connects the Black Sea to the Mediterranean Sea. The city spans both Europe and Asia, with its historical core located on the European side. It is characterized by its strategic location on trade routes and is surrounded by water on three sides, providing natural defenses. The city's topography includes hills and the Golden Horn, a natural harbor that has played a crucial role in its history and development.