The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

An increasingly eccentric apartment building, topped with winged beasties.

Most-visited and most-photographed slot canyon in the American Southwest.

Recently restored menagerie of Victorian-era beasts.

Two waterfalls flow down the cliff faces decorated with rare natural basalt columns.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

Towering basalt columns, a creation of fire and ice.

Northern Ireland's Brobdingnagian stepping stones.

The ancient tomb acts as a calendar that keeps perfect time.

The final resting place of New Orleans' most famous voodoo priestess.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

Half of a house.

A hidden subterranean installation offers a view of the sky.

The capitol city's oldest existing cemetery.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

San Francisco Bay's ghost town.

The former Naval shipyard is open for exploring - mostly.

A vast city of the dead, where the deceased outnumber the living by more than a million.