We went to Kutna Hora lasst week. It is a beautiful town that grew thanks to the silver mining. We saw some beautiful high Gothic Churches but also the Sedlec ossuary chapel where skeletons of 40-70 thousands people are collected. They were taken from other graves which were overfilled after Hussite wars, famines and plagues. It was a result of the 30 years war which was one of the most destructive religious wars with its first phase in Bohemia.