Mannheim Observatory

Mannheim Observatory is a baroque tower constructed from sandstone across four floors and reaching 33 meters in height. The building now houses residential apartments while retaining its protected monument status and original distinctive silhouette.

The Elector Karl Theodor commissioned this observatory between 1772 and 1774 to advance astronomical science in his realm. It served as an active research center until 1880, when its instruments were relocated to the newly established Heidelberg Observatory.

The tower is named after a Jesuit priest who conducted astronomical observations here and made the facility renowned. Today the spaces inside recall the era when scholars and notable guests like Mozart gathered to discuss science.

The tower remains visible from outside but cannot be entered as it now functions as a residential building. Visitors can enjoy its baroque architecture and distinctive shape from the surrounding public areas and photograph its exterior.

The building was never intended as a residence and only became apartments after the observatory closed in the late 1800s. This transformation turned what was once a hub of scientific discovery into a private home for ordinary residents.

Location: Mannheim

Architectural style: baroque architecture

Floors above the ground: 4

Height: 33 m

Made from material: sandstone

Website: http://alte-sternwarte-mannheim.de

GPS coordinates: 49.48650,8.45970

Latest update: December 8, 2025 21:03