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

The NBA player's elaborate former home is now a ghost of its old glory.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

An optical illusion found amid a logged redwood forest.

The last of its kind in the country.

The seamy, underground secrets of Portland's criminal past.

A once grand hotel is being retaken by the wilderness it once capitalized on.

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

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

The ghost town that ended up on Ebay.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

A beautiful Victorian-era cemetery, complete with a miniature village.

The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

This abandoned amusement park was built on a site with a dark history.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

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

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.