The Cochrane Gallery is located in the northwest of 17th Street, Washington, D.C., very close to the White House. Museum building is an ancient building in the 19th century, which has its own characteristics. As the largest private museum in Washington, it has over 17,000 works of art, some of which are quite valuable. Tickets cost $10. But I heard that because of financial difficulties, museums are facing closure or may be annexed by the National Gallery of Art.