Architect Christoph Mäckler had to solve the problem of designing a building for exhibits which required protection from exposure to light, The stairs are called
Himmelstreppe ("stairway to heaven") because they appear "endless" through an optical illusion. The colour blue, symbolising the
Blaue Blume of the Romantic era, dominates there and is used for other accents such as the
Blauer Erker, a
bay towards the street with windows of blue glass. The architecture of the new building has been described as "spectacular", while the stairway to heaven has been called "a work of art in its own right". The third floor offers a view of the Frankfurt skyline, making the
Paulskirche, the
Cathedral, and the
European Central Bank appear as though they are positioned next to one another. The gross floor area is and the effective floor area is . == Gallery ==