Relics of the 1894 Midwinter Exposition continue to delight visitors today.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Featuring a casually threatening atmosphere along with dessert and coffee to die for.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

San Francisco's newly reopened hands-on science museum.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

The magic's in the hole!

A heavenly experience, right here on Terra Firma.

Museum preserving torture methods from the past.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

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

Furniture tries to escape an abandoned building in San Francisco.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

An emporium for the weird, creepy, rare, and just plain gross.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

France's most famous cemetery, with some of its most curious tombs.

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

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A walk through the historic city center, under the streets of Seattle.

The seamy, underground secrets of Portland's criminal past.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A trash dump made beautiful by nature's power.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.