Lübeck Cathedral (German: Dom zu Lübeck, or colloquially Lübecker Dom) is a large brick-built Lutheran cathedral in Lübeck, Germany and part of the Lübeck World Heritage Site. It was started in 1173 by Henry the Lion as a cathedral for the Bishop of Lübeck. It was partly destroyed in a bombing raid in World War II (1942), when the Arp Schnitger organ was destroyed by fire, but was subsequently reconstructed. In 1873 the Cathedral celebrated its 700th anniversary, when an offshoot of the Lutheran Memorial Beech Tree, in Steinbach near Bad Liebenstein in Thuringia, was planted in the churchyard.