The Historic Sausage Kitchen of Regensburg (German: Historische Wurstküche zu Regensburg) is a restaurant in Regensburg, Germany. This is notable as perhaps the oldest continuously open public restaurant in the world. In 1135 AD a building was erected as the construction office for the Regensburg stone bridge.

Regensburg (historically known in English as Ratisbon) is a city in eastern Bavaria, at the confluence of the Danube, Naab and Regen rivers, Danube's northernmost point. It is the capital of the Upper Palatinate subregion of the state.

MARVEL OF THE MIDDLE AGES It is easy to see why Regensburg was listed as a UNESCO World Heritage site in 2006: As an ensemble, the Old Town is simply unique. Regensburg is the best-preserved medieval city in Germany. Almost 1,000 monuments are located closely together in the city center, forming a bridge through time.