The haunting ruins of Jack London's dream house.

Hidden beneath a lake for decades, this brutalist mine has now emerged from beneath the receding waters.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

The remains of a deserted steamboat sit rusting beside an old ferry pier and an abandoned train platform.

Odd outsider art installations surround a Gold Rush-era ghost town.

A mad mystery man who led Canadian mounties on a 150-mile wilderness chase is still buried with his secrets intact.

A popular tourist cave with a dark past.

The world's only flying boat museum honors a small Irish village that sent 20th-century aviation to new heights.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

This former Mormon settlement is reemerging from the receding waters of Lake Mead.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

A huge musical instrument played by the ocean.

One of few lasting examples of the brief octagon craze that developed into folly.

Its buzzing collection honors vibrator history.

The rest of him lived another 61 years and was buried elsewhere.

A Roman-inspired temple once controlled half of San Francisco's waters.