This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The site of the climactic scene from the classic horror film is now a historic landmark.

A wall of chewing gum moonlights as collective art.

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

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

Incredible sculptures inspired by obscure passages from the Bible.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

St. Augustine's record-setting narrow street was designed to protect against pirates.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

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

The first park built over a freeway is a brutalist masterwork.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

Ruins of a Carnegie family mansion on Cumberland Island.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

Portlandia is the second-largest copper repoussé statue in the United States.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

The magic's in the hole!

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.