- A castle in the Czech Republic that contains one of Europe's oldesttheaters. Built in 1766 in the baroque style, the small theater hasa proscenium and four traps in the floor. It has 10 sets, paintedby the Viennese artists Jan Wetschela and Leo Markla, that are apparentlythe oldest surviving scenery in the world. The scenes, which use perspectiveeffects developed by the Bibiena family, provide generalbackgrounds such as a palace, forest, and harbour. Many items of theoriginal stage machinery, such as ropes and winches for quick scenerychanges, still survive. Despite its fragile condition, the theateris occasionally used for productions. see also Celle Castle.