Former hotel turned into haunted playground.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

Home to Hollywood history and a very special salt crystal.

Spanning an elevation of 160 feet and containing 388 steps, this is Seattle's longest staircase.

The haunting ruins of Jack London's dream house.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

Former farm staffed by mental patients is now a public park.

Half of a house.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A replica that won't float away.

An increasingly eccentric apartment building, topped with winged beasties.

Former meatpacking facility turned vertical farm and sustainable business complex.

Cemetery featuring rare glass-fronted columbarium.

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

The fading, forgotten remains of a once bright and booming factory.

Megachurch turned Catholic church comprised of 10,000 glass panes.

The oldest surviving botanic garden in the United States.

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.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

The most unique castle in all of Southern California, entirely constructed from repurposed materials.

A ruined hotel with an unlucky history and an eerie present.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.