Himmelau Castle

The castle is a four-sided complex around a courtyard; the former moat has been drained. The three round corner towers, a fourth in the northwest having been removed, as well as the high west wing, date from the Gothic period. The south facade was redesigned in Neo-Gothic style. The arcaded walk in the eastern wing dates from the 16th century. A ashlar portal from the end of the 16th century and heraldic lions were transferred to Reideben Castle.

The chapel, built around 1480/1490 in the ground floor of the southeast tower, is dedicated to Saint John of Nepomuk. The late Gothic central room features a six-part star rib vault with polygonal shafts and leaf capitals. The western shield wall facing the castle was only recently erected and encloses an original arch that probably connected the chapel with a nave. Access to the church is now from the east. From 1953 to 1958, late Gothic wall paintings were uncovered in the spandrels. They depict the Fourteen Holy Helpers, with two or three figures each grouped in a framed image field. Ten figures are completely preserved, two only fragmentarily. In another spandrel, Christ on the Mount of Olives and the founding family are depicted, below which is the foundation inscription of Andreas von Himmelberg. The Baroque crucifix above the altar comes from St. Martin's Church in Villach.