At the Sigmaringen Castle, in the city of Sigmaringen, Baden-Württemberg, in southern Germany

 The Hohenzollern castle was built below the narrow Danube river valley in the modern Upper Danube Nature Park (German: Naturpark Obere Donau).

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(in the scenic region of Baden-Württemberg, in southern Germany) The city of Sigmaringen is famous for its majestic castle, which was once the seat of the Hohenzollern-Sigmaringen dynasty and the refuge of the last French emperor, Napoleon III. The castle museum displays fascinating exhibits of art, history, and culture, and offers guided tours and events. Sigmaringen is also a great base for exploring the upper Danube valley, a natural wonderland of cliffs, forests, and caves. You can enjoy hiking, biking, canoeing, or simply admiring the views along the Donauradwanderweg (Danube River Bike Trail). Sigmaringen is a destination that combines historical heritage, natural beauty, and friendly hospitality.

+ Dominating the skyline of Sigmaringen, an attractive city, Sigmaringen Castle appears to have grown from the rocky plinth on which it finds itself. Also known as Hohenzollern Palace (shown here), the beautiful building dates back as far as 1077, but much of it was rebuilt between the 17th and 19th centuries. The fabulous fortress is the ancestral home of the royal Hohenzollern family and has been open to the public for more than 100 years. Today, visitors can join guided tours and explore one of the largest private armory collections in the world.

+ Sigmaringen Castle was the princely castle and seat of government for the Princes of Hohenzollern-Sigmaringen. Situated in the Swabian Alb region of Baden-Württemberg, Germany, this castle dominates the skyline of the city of Sigmaringen. (The castle was rebuilt following a fire in 1893, and only the towers of the earlier medieval fortress remain.} Schloss Sigmaringen was a family estate of the Swabian Hohenzollern family, a cadet branch of the Hohenzollern family, from which the German Emperors and kings of Prussia came. (During the closing months of World War II, Schloss Sigmaringen was briefly the seat of the Vichy French Government after France was liberated by the Allies.) The castle is still owned by the Hohenzollern-Sigmaringen family, although they no longer reside there.

Sigmaringen is located on the southern edge of the Swabian Jura, a plateau region in southern Baden-Württemberg. The castle rises above the Danube on a towering chalk projection that is a spur of the white Jura Mountains formation. The hill is known simply as the Schlossberg or Castle Rock. The Schlossberg is about 200 meters long and up to 35 meters above the river. On this free-standing towering rock, the princely Hohenzollern castle is the largest of the Danube valley castles. The sheer cliffs and steep sides of the tower made it a natural site for a well-protected medieval castle.