The Altes Museum (German for Old Museum) is a museum building on Museum Island in Berlin, Germany. Since restoration work in 2010–11, it houses the Antikensammlung (antiquities collection) of the Berlin State Museums. The museum building was built between 1823 and 1830 by the architect Karl Friedrich Schinkel in the neoclassical style to house the Prussian royal family's art collection. The historic, protected building counts among the most distinguished in neoclassicism and is a high point of Schinkel's career. Until 1845, it was called the Königliches Museum (Royal Museum). Along with the other museums and historic buildings on Museum Island, the Altes Museum was designated a UNESCO World Heritage Site in 1999.