Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

Modest by day, illuminated majestically at sunset.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Monument to the cotton-destroying boll weevil.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

A miniature city built by a single hunchbacked monk.

148 feet long and in the middle of a verdant forest.

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

A collection of huge Pre-Colombian structures in Alabama.

The California capital city once stood 10 feet lower than it does today.

Where the author wrote her beloved "Little House" books.

An abandoned lot littered with concrete debris was once the home of the world's first female railroad president.

"You don't need a rocket scientist to build a steam engine, but we've got one." -Museum docent on the credentials of a restoration volunteer.

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

These once-beautiful historic graveyards are set against the barren Virginia City hills.

The trials and tribulations of marking Poe's grave.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

This old mining town, deep in the California desert, has a year-round population of one.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Factory that once supported an entire company town of 350.