Tour the sci-fi-esque reality of governmental disease management.

Couple's personal collection of pinball machines turned public pinball museum.

The curiosities and wonders of pharmacy in a delightful historic building.

A whimsical village of unique treehouses resides in a Washington forest.

A monument to the art of slicing people open.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

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

Towering basalt columns, a creation of fire and ice.

Hollowed out cedar log tubs set in an ancient towering forest.

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

A strange house built only at night, with rumored mystic inspiration.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

This geothermal hot spring hides beneath a slowly growing mineral dome.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

One part antique store, one part curiosities hodge-podge.

The world's longest known cave system.

One person's lost luggage is another person's treasure.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

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

This naturally-sourced hot spring is now home to a clothing-optional resort.

Bigfoot prints, Feejee mermaids, and haunted dolls on display in a tiny North Carolina town.

A self-built castle made by a mysterious man.