Metropolitankathedrale Hagia Trias

The Metropolitankathedrale Hagia Trias is an Eastern Orthodox cathedral featuring distinctive ochre-colored brickwork and an octagonal dome rising above a Greek cross floor plan. The structure creates an interior space designed for religious worship and community gatherings.

The cathedral was built in 1976 based on architect Klaus Hönig's designs, developed after his extended experience in Crete. It has served as the headquarters of the Greek Orthodox Metropolitan Diocese for Germany centered in Bonn since the mid-20th century.

The interior displays extensive religious artwork by Christophanis Voutsinas depicting biblical scenes and sacred figures, shaping the visitor's experience upon entering. These painted images communicate the traditions and spiritual focus of the Eastern Orthodox community.

The building is regularly open to visitors, particularly during services held according to the Orthodox calendar. It accommodates approximately 400 people and remains easily accessible by public transportation.

The interior decoration spanned 23 years and was not completed until 2010, reflecting the careful craftsmanship involved in the work. This extended timeframe makes the building a rare example of 1970s architecture with layered artistic development.