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)
Source: Wikipedia · retrieved 2026-06-23
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.
Gallery
Map
Blue dots: other places nearby — tap to explore.
Address
Ottopl. 1
50679 Köln
Hours
Mo: 11:00–20:00
Di: 11:00–20:00
Mi: 11:00–20:00
Do: 11:00–20:00
Fr: 11:00–22:00
Sa: 11:00–22:00
So: 11:00–20:00
Contact
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Comments
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Sources & links
- 🌐 Official website
- Official website (retrieved 2026-06-25)
- Wikidata (retrieved 2026-06-23)
- Wikipedia (retrieved 2026-06-23, rev 263965181)
Auto-generated, last verified: 2026-06-23