The National Gallery houses an international collection of art from around 1800 to the present day. It is one of the major collections of the National Museums in Berlin and is spread over several buildings. While the Hamburger Bahnhof presents contemporary art, the Alte Nationalgalerie is dedicated to 19th century art. The Neue Nationalgalerie was closed for 6.5 years during the basic renovation of the Mies van der Rohe building and has been reopened since August 2021. Two other houses of the Nationalgalerie that show works of classical modernism are the Museum Berggruen and the Scharf-Gerstenberg Collection in Charlottenburg.