The Alte Nationalgalerie houses one of the most important collections of 19th century painting in Germany and includes masterpieces by Caspar David Friedrich, Adolph Menzel, Edouard Manet, Claude Monet, not to mention Auguste Renoir and Auguste Rodin.
Amongst the most important highlights are Casper David Friedrich's "Der Mönch am Meer" (from 1810) Arnold Böcklin's "Die Toteninsel" (1883), Adolph Menzel's "Flötenkonzert Friedrich des Großen in Sanssouci" (1852) and Edouard Manet's "Im Wintergarten" (1979).
The Alte Nationalgalerie is one of the five museums forming the ensemble known as Berlin’s Museum Island – a UNESCO World Heritage site. The Museum was built between 1866 and 1876 and restored in neoclassical style by Friedrich August Stüler in the style of a Greek temple. The Museum reopened to the public after a thorough restoration in 2001.