This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.

Take a dip in the world's largest mineral hot springs pool.

A collection of fading fantasy tchotchkes lines this dirt road in the Colorado wilderness.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

The largest self-built castle in the U.S., six decades in the making.

One of three remaining theatres in the United States created in the Art Deco Mayan Revival style.

A mural and a few historical markers commemorate Denver's once-thriving Chinatown, which was obliterated in a racist riot.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Inside this casino, visitors are treated to slot machines and a rare German Christmas pyramid.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

Hike, ski, or snowshoe to a backcountry yurt that serves up gourmet, four-course dinners.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

This hidden jockey “walk of fame” celebrates the winning riders of the Kentucky Derby.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

Calidum et Deliciose Succosum!

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

Hidden behind Lincoln's head is a chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

Every president in history is immortalized in bronze in downtown Rapid City.

A swaggering, monumental souvenir of the most extravagant party Montreal’s ever thrown.

Montreal's colorful subway station shows its support of the local LGBT+ community.