The Sedlec Ossuary (Czech: kostnice Sedlec) is a small Roman Catholic chapel, located beneath the Cemetery Church of All Saints (Czech: Hřbitovní kostel Všech Svatých) in Sedlec, a suburb of Kutná Hora in the Czech Republic. The ossuary is estimated to contain the skeletons of between 40,000 and 70,000 people, many of whom have had their bones artistically arranged to form decorations and furnishings for the chapel.
