These are images of the recently completed Clyfford Still Museum designed by Allied Works Architecture. The building lives in downtown Denver, Colorado, sitting next to the pointy and shiny Denver Art Museum designed by Daniel Libeskind a few years back. That pointy building is all about metal: it exploits the structural properties of steel, is clad in aluminum and generally looks like an urban-scaled origami. The Clyfford Still Museum has steel it in, somewhere, but is more interested in the treatment of concrete that forms its surfaces. The outside is poured in a way that looks like tree bark, and by contrast the ceiling of the galleries on the upper floor is a concrete brise soleil that seems (at least in photos) more like a canopy of leaves than a massive shutter. If its neighbor is metal origami, then this museum does something different: it continues the grove of trees outside, but renders them in concrete. Maybe this makes the museum seem more rooted, or maybe the earthy color palette has the same effect.
Also, there are paintings inside.