One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

When ecosystems collide in the arid Southwest.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Within the former ghost town of Cisco is a carefully restored tiny town with one resident and its own art residency.

The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

The fifth-longest natural arch in the world, and the longest outside China.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

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

Oddly shaped rock formation, misassociated with a nearby utopian community.

This ghost town was once a cult-like religious utopian settlement.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A house carved into a rock in the 1940s.

A cemetery full of touching tombstones from a community of railroad workers, uranium miners, and Cold War missile launchers.

A ghost town that held steady longer than most, but finally gave up the ghost.

This expansive bridge in the Canadian wilderness was originally just built for friends.

The colorful, smiling concrete silos of Vancouver.

After spending more than a century on the ocean floor, this shipwrecked column is finally resting atop solid ground.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

Roadside collection of 65,000 signs.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

This ancient theater was once the home of fierce gladiatorial battles.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

The lost Latin words were reconstructed using the holes from the nails that once pinned them in place.