The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

Siberian ghost town built by gulag prisoners.

This ghostly Alaska village still clings to a steep cliffside despite having been abandoned for over 50 years.

A Saint Nicholas-themed ghost town in the Mojave desert.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

The ghostly remains of what was once the world's richest copper mine.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

One of the few working locomotive roundhouses in the United States.

The concrete shell of an industry giant remains as a playground for graffiti artists, auto scrappers, and paintball warriors.

Opulent downtown movie theater now houses cars as an indoor parking garage.

A Beaux-Arts triumph set to become Ford's innovation campus

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

Abandoned concert venue legendary for its rock counterculture.

This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.

In the late 1990s, a mechanic and fan bought this iconic sportscar back from the dead.