KölnTriangle
A 103 m tower in Deutz with an observation deck – panoramic views over the Rhine, the Old Town and the cathedral.
The KölnTriangle is a high-rise in the right-bank district of Deutz. It is best known for its observation deck, offering panoramic views across the Rhine to the Old Town and the cathedral.
At a glance
- Height: 103.20 m, 29 floors
- Built: 2004–2006
- Architects: Gatermann+Schossig
- Highlight: observation deck (since 2 September 2006)
Shape & name
The name derives from its triangular floor plan with curved edges – similar to a Reuleaux triangle.
Role in the heritage debate
During construction the tower prompted UNESCO to place Cologne Cathedral on the List of World Heritage in Danger. As a result, the high-rise concept for Köln-Deutz was revised.
Source: Wikipedia · retrieved 2026-06-23
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Auto-generated, last verified: 2026-06-23
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