Burg Vohburg, Medieval castle ruins in Vohburg an der Donau, Germany

Burg Vohburg is a ruined hilltop castle on a 371-metre rock above the Danube at Vohburg an der Donau. What remains of the High Medieval complex is the inner gate arch, a semicircular tower beside the gate, and a ring wall of regular Jurassic limestone and dolomite blocks, rebuilt in stylised form between 1986 and 1990 after a section collapsed in 1978. The site is recorded as a Bavarian monument and also protects Bronze Age, Latène and Roman traces.

A fortified court stood on the hill by the late 10th century, and from 1040 the Counts of Rott-Vohburg held the site. After 1120 it became the main stronghold of the Diepoldinger family. In 1246 Conrad IV married Elisabeth of Wittelsbach here; in 1316 Ludwig the Bavarian's troops destroyed the castle, and rebuilding only began in 1414 under Duke Ernst.

The castle hill also holds the Pflegerschloss, an annex built against the castle wall in 1721 by the official Johann Kastl; Napoleon spent a night there in 1809. On the same hill stands a modern consecration hall, built on the ground plan of the Zehentstadel barn that burned down in 1910.

The site is best explored on foot, with the reconstructed ring wall offering connected walking routes throughout the grounds. The terrain is steep in places, so visitors should be prepared for uneven surfaces and some uphill sections.

The massive bergfried in the northwest was rebuilt in 1959 and served as the town's water tower until the end of 2009. The castle gate and a semicircular tower beside it still stand, built of regular Jurassic limestone and dolomite blocks.