Church of St Castullus (also known as Church of Saint Castulus) is one of the finest Gothic buildings in Prague. The church was built in the late 1300s as a small Romanic church. It burned down on 21 June 1689, as a tragic, revolting arson case struck both the Old and the New towns. Fortunately, beautiful slender pillars supporting a delicately ribbed vault survived the fire. Inside, you can see wall paintings, religious statues and a sacristy, Baroque furnishings and a decorated metal font.
Location: Haštalské náměstí (Hastal Square)
In Czech: Kostel svatého Haštala