The Neue Nationalgalerie (New National Gallery) in Berlin is not only a museum but also an architectural milestone. The last building of the great German architect Ludwig Mies van der Rohe (1886-1969), it is widely considered one of the most perfect statements of his aesthetic, with its monumental steel columns and cantilevered roof with glass enclosure.
As a bold counterpoint, John Beckmann has created the futuristic Minima XL, a large scale outdoor sculpture employing minimal surface geometry.
In mathematics, a minimal surface is a surface that locally minimizes its area. This is equivalent to having zero mean curvature.
Physical models of area-minimizing minimal surfaces can be made by dipping a wire frame into a soap solution, forming a soap film, which is a minimal surface whose boundary is the wire frame. The origins of minimal surface theory date back to 1762.