There's a moebius strip look to the roof of this soccer stadium being built for the Olympics in Shenyang. Built in a series of interlocking curves, the Olympic Sports Center Stadium is one of four soccer arenas for the Olympics outside Beijing. It just gets stranger when you see it up close, and from inside. We've got more eye-boggling pictures below.

Here's the inside, which is still open to the elements and filled with sand. Here's a structure that looks like a chunk of spaceship. Photos by Zhang Wenkui/ChinaFotoPress/Getty Images.