Alternberger Dom, Dhünn, RWW Wasserroute

The Altenberger Dom (or Bergischer Dom) is the former abbey church of Altenberg Abbey which was built from 1259 in Gothic style by Cistercians. Listed as a cultural heritage, it is located in Altenberg, now part of Odenthal in the Rheinisch-Bergischer Kreis, North Rhine-Westphalia, Germany. Until 1511, the church was the burial site of counts and dukes of Berg and the dukes of Jülich-Berg.

Haus Altenberg is a house for education and meetings of young people (Jugendbildungsstätte) of the Diocese of Cologne, located in Altenberg, now part of Odenthal, North Rhine-Westphalia, Germany. It was the centre of the Katholische Jugendbewegung in Germany from 1926 to 1954, interrupted only during World War II.