The Walpurgis Hall (German: Walpurgishalle) is a hall on the Witches' Dance Floor near Thale in the Harz mountains, Germany, built in the Old Germanic style by Hermann Hendrich and Bernhard Sehring. The hall was opened in 1901 and is a museum today. Whilst Sehring designed the architecture of the building to Hendrich's guidelines, Hendrich himself was responsible for the five large paintings in the interior of the hall.