1. A machine that lays completed walkways.
2. The inner workings of Patek Phillipe watches, which are thought to be the most expensive available.
3. The simultaneous appearance of a sunset and eclipse.
4. A curvaceous fence in Southern California, on the Algondones Sand Dunes.
5. Pyrite cubes which were formed naturally – without human intervention.
6. An eggshell pattern created by drilling 20,000 holes.