A giant time capsule not scheduled to be cored until 2040.

Penn State's giant bug collection.

This 19th century machine put animals (including humans) in boxes to study how they metabolized calories.

No one knows who painted this mysterious mural in a Penn State basement.

This alley-cum-fan gallery in the ex-Nirvana drummer's hometown holds the world's largest drumsticks.

Where the oil industry began.

A record-size collection of wild-haired troll dolls tells the story of the mythical creature's roots in Scandinavian folklore.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

The site of America's first commercial oil well essentially disappeared after the town went bust.

A pyramid commemorates the birthplace of James Buchanan, the 15th president of the United States

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

This colorful West Virginia cowboy greets passersby with a glassy stare.

Locals call this magical moss-covered walkway the "Emerald Path."

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

An American flag was erected for every day that passed during the Iranian Hostage Crisis.

Priceless space junk on display in front of a local Dairy Queen.

There is beauty and history in the ruins of this former company town.

An abandoned stretch of highway, deteriorating next to the operational one.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.

A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

Antiques and recycled art surround this cabin designed to resemble a 19th-century schoolhouse.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

The oldest continually operating golf course in the United States.