- Hundertwasser’s visionary art: The museum is home to the world’s only permanent exhibition of Austrian artist Friedensreich Hundertwasser’s work, which features bold colours, vibrant spiral motifs, and ecological messages.
- Architectural marvel: The building itself is a masterpiece—no straight lines, vibrant mosaics, lush greenery cascading from the walls, and a checkerboard facade create an immersive, otherworldly atmosphere.
- Green museum: With its eco-cultural concept, Kunst Haus Wien is Austria's first “green museum,” committed to sustainability and environmental consciousness. This includes the use of a renewable hydrothermal energy source, waste reduction strategies, and the incorporation of vegetation and green spaces in the interiors.
- Thought-provoking exhibitions: Encapsulating Hundertwasser’s forward-thinking ideas on environmental issues, the museum regularly features curated exhibitions and art installations on ecological topics such as sustainability, climate change, and recycling.