Strange red rock formations that have been attributed to a higher power for hundreds of years.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Want to properly offend a king? Sculpt a giant hill figure in chalk of him riding out of town.

A building so large that it has its own weather.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.