Wewelsburg (German pronunciation: [ˈveːvəlsˌbʊɐ̯k]) is a Renaissance castle located in the northeast of North Rhine-Westphalia, Germany, in the village of Wewelsburg, which is a quarter of the city Büren, Westphalia, in district of Paderborn in the Alme Valley. The castle has the outline of a triangle. After 1934, it was used by the SS under Heinrich Himmler and was to be expanded to the central SS-cult-site. After 1941, plans were developed to enlarge it to the so-called "Center of the World". In 1950 the castle was reopened as a museum and youth hostel. The museum's contemporary history department was reopened as "Wewelsburg 1933–1945 Memorial Museum" in 2010. The youth hostel, which is mainly placed in the east wing of the castle, is one of the largest in Germany.
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