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

The most decorated dog of World War I is preserved in the Smithsonian.

High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

Underground tunnels remain beneath this abandoned mental asylum.

Lithuania's outdoor sculpture trail of wooden folk art.

The largest catacomb system in the world.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

This picturesque mansion has gone from opulent ruin to nature museum.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

This landmark cemetery in Boston was created more than 300 years ago.

A cave dug by a man directed by ghosts to find pirate treasure.

Nikola Tesla's former home contains an homage hidden from plain sight.

The quiet canyon has a tumultuous history involving a doomsday cult.

A Mysterious Masonic tomb in San Luis Obispo.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

The oldest farmer's market in America is so ancient it was approved by the King of England.

An intricately carved Viking church overlooks a glistening fjord.

The stately remains of Llywelyn the Great's mighty fortress.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.