Shadeshifter

Oakland's newest public sculpture at the 19th Street BART station has a unique ability: It changes color with the weather. Shifting Topographies, made by artist Dan Corson, is inspired by the hills of Oakland, the paint jobs on cars around the city, and the blue of the BART station itself. The color shifts among various shades of blue and green as the weather changes, and when the sun goes down, light projections move across its surface. [CityLab]