Sanssouci Park

The main attraction for Potsdam visitors, the sprawling Sanssouci Park has been a World Heritage Site since 1990. The former summer residence of the Prussian royals, the park is home to numerous palaces, landscaped gardens, and eye-catching architecture. Your best bet is to hop on Bus 695, which stops right outside the train station and will get you to the park in 10 minutes. Otherwise it's about a half-hour walk.