The Neuer Garten (New Garden) is Potsdam's second great royal park after Sanssouci, occupying a peninsula between the Heiliger See and the Jungfernsee on the northern edge of the city. It was laid out by Frederick William II in the English landscape style in the 1780s — deliberately informal in reaction to the geometric rigidity of Sanssouci's Baroque garden. The Marble Palace, built beside the Heiliger See, was Frederick William II's summer residence, and the Cecilienhof at the northern end of the park was built for his great-great-grandson in 1917.
The park is less visited than Sanssouci but more relaxing — there are no timed tickets, no queues, and on weekday mornings you can walk the shore of the Heiliger See in near-solitude. The Marble Palace is open for visits; the Gothic Library, the ice cellar, and the pyramid-shaped garden structures are scattered through the grounds. Combined with a visit to Cecilienhof, the Neuer Garten makes for a half-day of easy walking in beautiful surroundings.