Visitors to this library are in for a real-world education in modernist architecture.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A small flooded ghost town with a few scattered structures remaining.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

A house carved into a rock in the 1940s.

Largest collection of mounted dinosaur specimens in the world.