Sedlac Ossuary, more commonly known as the bone church, is a small church. Golgotha, soil mixed with church cemetary soil transformed the cemetary into very desirble place to be buried. Towards the end of the 15th century its area was reduced and skeletons exhumed. Bones were arranged in various designs, the shape of letters; a goblet; curtains; a coat of arms and four large bell shaped mounds. Most date from the 14th and early 15th century. Many were killed by the Black Death (1346-1353) and during the Hussite wars (1419-34).