In a largely deserted ghost town, a little brick building recalls its history as a gold rush hub and haven for outlaws.

This massive redwood tree has a hole in the base big enough to drive through.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

This architectural triumph is the only Frank Lloyd Wright house in Alabama.

The rusty hull of this 1899 ship serves as a tribute to explorers of the bottom of the world.

What was once a unique system of urban elevators is turning into a mechanical ruin.

This remote stretch of sand is a penguin lover's paradise.

Where British troops serving on the remote islands paid tribute to their faraway hometowns.

The southernmost Anglican cathedral in the world has whale bones standing in its yard.

This haunting ghost ship stands beached in the waters off the coast of the Falkland Islands.

The birthplace of the very first human resident born in Antarctica.

Nimrod Polar Expedition base, and home to hundred-year-old frozen whisky.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

A giant Troll lurks under one of Seattle's oldest bridges.

This mundane post marks the old location of the city's main postal hub.

An eatery for UFO seekers on the Extraterrestrial Highway.

Mysterious meeting place for UFO hunters near Area 51.

A layered tribute to the work of mosaicist Isaiah Zagar.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.