We may still be a long way from putting a human colony on Mars, but that doesn't mean we can't live like spacemen here on Earth. These 18 trippy buildings—all built since 2000—look like they're from another world entirely.
The City Hall of Alphen aan den Rijn, Netherlands, 2002. Architect: Erick Van Egeraat.
Photo: Christian Richters
The Selfridges store, Birmingham, UK, 2003. Architects: Future Systems.
Photo: Christopher Furlong/Getty Images
The Walt Disney Concert Hall, Los Angeles, 2003. Architect: Frank Gehry.
Photo: David McNew/Getty Images
Phaeno Science Center, Wolfsburg, Germany, 2005. Architect: Zaha Hadid.