This semi-spooky remnant of an abandoned hotel provides fantastic views.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

It would take 35 firetrucks to fill this enormous glacial pothole.

America's first serial killer rests in anonymity.

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

A historic covered bridge is but one example of an oddly prevalent American urban legend.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

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

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

The graffitied ruins stand hidden within the Pennsylvania woods.

This park contains a number of standing stones meant to heal and inspire.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

In which a local geological marvel becomes a quaint roadside attraction.

This might just be the TARDIS of bookstores.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.