Enjoy the city of Istanbul on a one-day guided tour. Istanbul is the largest city in Turkey known for its fascinating history, culture, and beauty. Istanbul borders the narrow Bosporus Strait where the waters of the Black Sea meet the inland Sea of Marmara. It was historically a main point of arrival for trade ships. Explore Topkapi palace and enjoy a typical Istanbul lunch at a local restaurant. The people of Istanbul are known for their hospitality as they are open to receiving tourists from all over the world.