Museum
Heldburg Castle

Veste Heldburg, a hilltop castle, stands on a volcanic cone in the southernmost tip of Thuringia. Originally built in the High Middle Ages, it was transformed into a Renaissance castle in the 16th century and is now a cultural monument known as the “Franconian Beacon.”
History+
The origins of Veste Heldburg date back to the 12th or 13th century. In the early 14th century, it was owned by the Counts of Henneberg-Schleusingen and served as an administrative and judicial seat. In 1374, the castle passed to the Wettins. Under Johann Friedrich the Middle, an expansion in Renaissance style began in 1560, led by court architect Nikolaus Gromann. Duke Johann Casimir of Saxe-Coburg later used the Veste as a secondary residence and hunting lodge. After plunderings during the Thirty Years' War, it was refortified and temporarily served as a residence for the Dukes of Saxe-Hildburghausen from 1776.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Heldburg-Veste-02.jpg
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 50.2887, 10.7290