Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.

This historic mansion was built as a symbol of love between a husband and wife.

America's first public mental health facility.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

This protected area in Lake Huron contains some of the world’s best-preserved shipwrecks.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

Where America's first doomsday cult awaited the end of the world.

A toxic ghost town sitting atop a massive coal fire.

World's first "penitentiary," meant to be humane, drove men insane.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

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

An annual celebration of the infamous, unsolved skyjacking.

This remarkable collection devoted to the study of fish includes 1 million preserved specimens from all around the world.

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.

Train debris from the deadliest avalanche in United States history can still be found in the ravine where so many perished.

This graveyard contains markers and monuments dedicated to some of the darkest chapters in Washington's history.

Seasonal, Pacific Northwest cuisine served in a 101 year old firehouse.

Site of the greatest known waterfall that ever existed.

Local legend has it that an old, decaying staircase outside this cemetery is haunted by dozens of ghosts.