After German reunification in 1990, the state of Brandenburg was created and Potsdam became its capital.

An excerpt from the article 24 facts about Potsdam

A large part of the city's cultural landscape was then included on the UNESCO World Heritage List. The entry covers approximately 500 hectares and 150 buildings.

The government of the state of Brandenburg and the Landtag of Brandenburg, i.e. the state parliament, are based in Potsdam.