Palais Doos, building in Schleswig-Holstein, Germany

Palais Doos is a two-story brick building from the late 18th century in Wilster with seven window sections and a mansard roof. The nearly square floor plan contains rooms arranged symmetrically around a central hallway, with family living quarters below and grand reception rooms above.

The house was built around 1785 to 1786 as a residence for the wealthy Doos family and was given to the town in 1829 after Louise Doos died. Most of its furnishings came from the demolished Baroque castle Friedrichsruhe in the nearby village of Drage.

The mansion reflected the wealth and learning of the Doos family, whose library of over ten thousand books demonstrated their passion for knowledge. The elaborate furnishings and artworks from the nearby Friedrichsruhe castle made the house a place where taste and prosperity were on display.

The entrance on the town side is reached by an outdoor staircase and opens into a deep hallway on the first floor, with the Rococo hall on the upper floor. The building can be visited on occasions such as the farmers' market and Sunday shopping days. Since 2006 it has housed the town library and archive.

The library of more than 10,000 volumes was kept under the roof; it is now held in the Old Town Hall, today the town museum. The large Baroque cabinets in the entrance hall came from Friedrichsruhe Castle in Drage, demolished in 1787, whose contents Doos bought at the sale.