11,661,624 people visited Istanbul's museums and historical attractions in 2010, and left an income of 90 million TL (56.2 million USD).

Topkapi Palace was the mostly-visited museum in Istanbul in 2010. 3,588,730 tourists visited Topkapi Palace Museum in 2010 and Istanbul earned 30.6 million TL (19.1 million USD) of income from this museum's fees.

Hagia Sophia Museum was the second most-visited museum in Istanbul with 2,952,768 visitors and income worth 26.6 million TL (16.6 million USD).

Other most-visited museums were Turkish and Islamic Artifacts Museum, Hisarlar Museum, Istanbul Archeology Museum, Yildiz Palace Museum, Yerebatan Cistern cistern /cis·tern/ (sis´tern) a closed space serving as a reservoir for fluid, e.g., one of the enlarged spaces of the body containing lymph or other fluid. .

1,124,503 people visited Istanbul's palaces and mansions in 2010 and they left 11.6 million TL (7.25 million USD) of income.