The Glass Pavilion, built in 1914 and designed by Bruno Taut, was a prismatic glass dome structure at the Cologne Deutscher Werkbund Exhibition. The structure was a brightly colored landmark of the exhibition, and was constructed using concrete and glass. The concrete structure had inlaid colored glass plates on the facade that acted as mirrors. Taut described his "little temple of beauty" as "...reflections of light whose colors began at the base with a dark blue and rose up through moss green and golden yellow to culminate at the top in a luminous pale yellow."