I really wish they either used a wider lens or posted that from a different angle because I don't normally get confused by a photograph, but this one is driving me crazy.

*edit

The more I stare at the picture, the more I'm understanding it, the dunes, I can recognize them as dunes now, but the crazy way it looks like the dunes are flat and going straight up is what's killing me. I guess that's the problem with photos, all flat and stuff. :p