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

New fungal and bacterial species call this deadly lake home.

Mining town from the late 1890s, once home to Calamity Jane.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

A wealth of local folk art, antiques, and curios, without ever leaving your car.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

A man's home is his castle.

This natural spring not only claims to heal the wounded but it has also been willed to God.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

An acoustic anomaly with a mysterious cause.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

Ruins of a Carnegie family mansion on Cumberland Island.

Hundreds of trees made from glass bottles make up this forest on Route 66.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

The ghost town that ended up on Ebay.

Don't blink or you'll miss it.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

The remains of this hell for leather wild west town can still be found in the Arizona desert.

These half-buried combine harvesters just off Route 66 are an homage to the Cadillac Ranch.

One of the ghostly stops along Route 66.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

The ruins of a Florida miracle spring resort make it seem like a wonder that this was ever a health spa.