Cimitir Háj u Duchcova

Osek Monastery (Czech: Osecký klášter; German: Kloster Ossegg) is a Cistercian monastery in Osek in Ústí nad Labem Region of the Czech Republic. Originally built in the 13th century as a Romanesque-Gothic structure, it was transformed into the high-Baroque style during the early 18th century, giving it the today's appearance. The monastery complex comprises the Church of Assumption of Virgin Mary, the building of the convent, the abbot's residence (prelature) with a clock tower, and several auxiliary buildings.