Ahlden House - Credit: Wikimedia Commons
Ahlden House () is a stately home at Ahlden on the Lüneburg Heath in Lower Saxony, Germany. It was built in 1549, originally as a water castle on the river Aller, which has since changed its course. Nowadays the three-winged mansion is a private residence and is used as an arts auction house. Read more on Wikipedia
Source: en.wikipedia.org