The Picture Gallery, located in the Sanssouci Park of Potsdam, stands as a testament to the artistic and cultural ambitions of Frederick II of Prussia. Constructed between 1755 and 1764, this gallery is not only a remarkable example of 18th-century museum architecture but also the oldest existing museum built for a monarch in Germany. It houses an impressive collection of paintings from the 16th to 18th centuries, including works by notable artists such as Caravaggio and Rubens, reflecting Frederick the Great's transition from French Rococo to historical paintings.