The eerie ruins of an isolated abandoned town nicknamed "the Widowmaker" for its deadly gold mine.

An overgrown garden stands as a grim marker of an unrealized dream.

An eerie, decaying ghost town destined to fade into the forest.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

It's clear this abandoned Art Deco gem was no ordinary cleaners.

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

The short-lived railroad town in central Oregon has been abandoned since the 1930s.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

Before it was abandoned and left to rust alongside the road, this riverboat starred in a John Wayne movie.

Strange beasts lurking in a garden are all that remain of a quirky, short-lived theme park.

These abandoned grain silos and tunnels are an urban exploration dream.

Salt is slowly eating away this abandoned saltworks town in the desert.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

An abandoned Cold War missile radar site.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

A forsaken wonder in the middle of the East Side neighborhood.

A desert settlement founded and later abandoned by Hawaiian members of the Church of Jesus Christ of Latter-day Saints in Utah's Skull Valley.

A forgotten Cold War relic hidden in the outskirts of a Wisconsin city.

This Cold War missile launch site has been abandoned for 40 years.

A crumbling mountain resort that looks like it was abandoned in an instant.

A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

The ruined remains of a coal mining ghost town are hidden within the woods.

This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.