The Belvedere on the Pfingstberg is a palace in the northern part of the New Garden in Potsdam, atop Pfingstberg mountain. It was commissioned by Friedrich Wilhelm IV and is only one part of an originally substantially more extensive building project. The twin-towered building was modeled on of Italian Renaissance architecture, and it was built between 1847 and 1863 with an interruption from 1852 to 1860. From sketches of from the king, the architects Ludwig Persius, Friedrich August Stüler and Ludwig Ferdinand Hessian drew up details plans. The garden architect Peter Joseph Lenné was responsible for the design of the grounds.
The building fell into disrepair, but was repaired between 1988 and 2005 by a group of local residents. Today, the Belvedere is open for tourists.
References:The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.