The Rubik’s cube was a great toy in the 1980s. Here’s a lesser known version and equally challenging.
Taken by Jeremy Wright at the Kona Inn, Kona on Hawaii (the big island) this is a large and spectacular three-dimensional map using planes of wood to form the bathymetry around the islands. You quite often see these sort of relief maps made by those with access to laser cutting technology but not normally at this size. Try telling me you don’t want this on your wall. You’d be lying!