Cooperative Business Bank Building, Bank building in the Slovene National Style on Miklosich Street, Ljubljana, Slovenia.

The Cooperative Business Bank Building is an Art Nouveau bank on Miklosich Street in Ljubljana with a bright facade featuring geometric patterns and the red, white, and blue colors of the Slovenian flag. Its walls are richly decorated with ornamental details that distinguish it from surrounding structures.

Built in 1921 for the Cooperative Business Bank, the building was Ivan Vurnik's most important early work. While designing it he abandoned Viennese ornamental models and drew exclusively on Slovene motifs, a shift linked to debates on national identity after the collapse of the monarchy. It is registered Slovene cultural heritage.

The facade blends Slovenian national symbols with Viennese Secession style through its decorated walls and geometric patterns. Visitors walking past can easily spot these design choices from Miklosich Street.

The building remains an active bank and visitors can view the exterior architecture from Miklosich Street throughout the year. It is easily accessible from the street and the facade is clearly visible from outside.

The interior features a reception hall with a colored glass ceiling that bathes the space in soft light. Colorful glass bottles are cleverly integrated into the architectural design, creating an unexpected decorative touch.