The world’s largest Masonic temple was saved by the White Stripes.

Concrete igloos standing across from what remains of the Michigan Central train depot.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district.

This crumbling industrial fortress has attracted daredevils, filmmakers, and historians.

This unusual building straddles two countries.

Haunted Victorian house that inspired a legendary "Ghostbusters" court ruling.

A 19th-century blast furnace that played a big role in the area’s industrial development.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

This abandoned factory on the Hudson River once churned out a million bricks a week.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

Home to the abandoned Tioronda Hat Works Factory, this park is a combination of woodlands and marshlands.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

An unsolved murder victim's grave which may or may not contain her body.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

This 19th century granite fortification is one of the most well preserved forts in New England.

Stone monument honoring a town founder has a witch-boot shaped stain and a curse to go with it.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

This roadside stand claims to be the world's smallest bookstore.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Said to be haunted, this tower was constructed by a sugar importer as a gift to his wife.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

New Hampshire's first neighborhood is now preserved as a historic village with live action role players.