Schwetzingen Palace is a schloss in the German state of Baden-Württemberg. Schwetzingen was the summer residence of the Electors Palatine Charles III Philip and Charles IV Theodore. It is situated in Schwetzingen, roughly equidistant from the electors' seats at Heidelberg and Mannheim, and is most notable for its spacious and ornate gardens. Other than these exceptionally well preserved gardens and the palace proper, the compound also features the Schlosstheater Schwetzingen, the principal venue for the annual Schwetzingen Festival.

Heidelberg Castle is a ruin in Germany and landmark of Heidelberg. The castle ruins are among the most important Renaissance structures north of the Alps.