Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

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

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

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

A house carved into a rock in the 1940s.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

This Moab institution functions as both a rock store and a small natural history museum.

It's safe—and permitted—to walk across these twin natural sandstone arches.

A small oasis not far from downtown Moab.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Hundreds of graffiti artists have decorated this flood-wall on the west bank of the Mississippi River.

This spot in St. Louis, marked with a simple sign, has seen more pro baseball than just about anywhere else in the world.

An abandoned factory along the Mississippi coated by a giant mural.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

The red brick house where the father of rock 'n' roll wrote some of his classic hits.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

I Street Bridge is the heaviest swinging center bridge in the United States.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

The California capital city once stood 10 feet lower than it does today.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

A Roman-inspired temple once controlled half of San Francisco's waters.

The black lab that was voted mayor of a California town is forever remembered by a life-size statue.