The Bosphorus Strait connects the Sea of Marmara with the Black Sea. It is 30 km long and 550 to 3000 m wide. Its depth varies from 36 to 124m in the middle of the Strait. The city of Istanbul is the only city in the world located on two continents, as half of the city is in Europe and the other half in Asia.

Boğaziçi Koprüsü ) is a bridge in Istanbul, Turkey spanning the Bosphorus strait (Turkish: Boğaziçi). The bridge is located between Ortaköy (European side) and Beylerbeyi (Asian side). It is a gravity anchored suspension bridge with steel pylons and inclined hangers.

Ortakoy used to be a small fishing village and now is the meeting point of Istanbul residents with its animated streets full of cafés, restaurants, bars and night clubs.

Dolmabahçe Palace (Turkish: Dolmabahçe Sarayı [doɫmabahˈtʃe saɾaˈjɯ]) is a 19th-century imperial palace located in Istanbul, Turkey, along the European shore of the Bosporus, which served as the main administrative center of the Ottoman Empire from 1856 to 1887 and from 1909 to 1922.

Üsküdar (Turkish pronunciation: [ysˈcydaɾ]) is a municipality and district of Istanbul Province, Turkey. Its area is 35 km2, and its population is 524,452 (2022). It is a large and densely populated district on the Anatolian (Asian) shore of the Bosphorus.

The Blue Mosque was built between 1609 and 1616 in what was then the center of Istanbul. Its position opposite Hagia Sophia suggests that Ahmed I intended the mosque to rival the glory of the former catheral. The mosque's architect, Sedefkar Mehmed Ağa, is responsible for the perfect proportions of its structure.

It was formerly a church (360–1453) and a museum (1935–2020). The last of three church buildings to be successively erected on the site by the Eastern Roman Empire, it was completed in AD 537, becoming the world's largest interior space and among the first to employ a fully pendentive dome.