Open Monument Day® at the Mausoleum von Carstanjen in Bonn
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A Rare Art Experience in the Mausoleum von Carstanjen
On Sunday, September 13, 2026, the Mausoleum von Carstanjen in Bonn will open its usually closed doors for Open Monument Day®. From 1:00 PM to 4:00 PM, art historical guided tours will take place through the rotunda and park, making architecture, construction history, and memory culture directly tangible. The monument on the Rhine is considered the largest private mausoleum on the Rhine in the region and is today maintained as a Christian burial site. ([buergerstiftung-rheinviertel.de](https://www.buergerstiftung-rheinviertel.de/aktuelles/veranstaltungen/detail/tag-des-offenen-denkmals-mausoleum-von-carstanjen-2026))
Architecture between Rotunda, Crypt, and Park
The dome building from the late 19th century combines representative forms with sacred symbolism. The rotunda, park, and crypt offer a concentrated view of monument architecture, bourgeois representation, and the art historical significance of the site. The guided tour will reveal how the building volume, sequence of spaces, and ornamentation create an impressive exhibition atmosphere. ([katholisch-in-godesberg.de](https://www.katholisch-in-godesberg.de/ueber-uns/mausoleum-von-carstanjen/index.html))
Guided Tours with a Historical Perspective
The offered tours take place every half hour and convey the construction history as well as the connections of the von Carstanjen family within the Rhine bourgeoisie of the 19th century. The program is complemented by a photo documentation that makes the site readable as a cultural heritage and memory space. For visitors, this creates an aesthetic experience that connects architecture, history, and museum education. ([tag-des-offenen-denkmals.de](https://www.tag-des-offenen-denkmals.de/denkmal/cmb4rzied0001l504iohww3bk/mausoleum-von-carstanjen))
Visit, Accessibility, and Service
The address is Auerhofstraße 11, 53175 Bonn. Parking and public transport connections are available; the event information also notes that not all areas are wheelchair accessible. Admission is free, and donations are appreciated. Additionally, there will be drinks and cakes so that the monument day can also be experienced as a relaxed cultural walk in southern Bonn. ([tag-des-offenen-denkmals.de](https://www.tag-des-offenen-denkmals.de/denkmal/cmb4rzied0001l504iohww3bk/mausoleum-von-carstanjen))
Conclusion
Those who wish to experience art, architecture, and memory culture in a concentrated form will find an extraordinary place here. The Mausoleum von Carstanjen combines monument preservation, historical narratives, and sensual spatial effects into an impressive excursion. A visit is definitely worthwhile live on site. ([tag-des-offenen-denkmals.de](https://www.tag-des-offenen-denkmals.de/denkmal/cmb4rzied0001l504iohww3bk/mausoleum-von-carstanjen))
Official Channels of Mausoleum von Carstanjen:
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- Website: https://www.buergerstiftung-rheinviertel.de/projekte/mausoleum-von-carstanjen
