Hermitage Amsterdam is a dependency of the Hermitage Museum of Saint Petersburg on the Amstel river in Amsterdam. The dependency is located at the former Amstelhof, a classical style building from 1681. The dependency has been displaying small exhibitions in a side building next to the Amstelhof since 24 February 2004. The full museum was opened on 19 June 2009. It is currently the largest dependency of the Hermitage Museum, with the total area of the building numbering 12,846 square metres (138,270 sq ft), and the exhibition area 2,172 square metres (23,380 sq ft) (two big exhibition halls and exhibition rooms).