Apart from the lake itself, Millstatt’s main attraction is its Romanesque Benedictine abbey, founded in 1070. This pretty complex consists of the 11th-century abbey, a graveyard that invites a stroll, and foundation buildings south of the abbey, with lovely yards and arcades. If you walk downhill along Stiftsgasse from the abbey, you see on the left a 1000-year-old lime tree. Millstatt was no exception to the practice common during the Middle Ages of holding trials beneath a tree (often a lime tree) and using the same tree for hangings.