This Maryland farm is known for its amazing corn mazes and its 30-foot junkbots.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

The slate extracted from these Pennsylvania quarries was once hailed as the finest in the world.

Easter in Westminster may be the only time and place to behold Edgar Allen Poe made entirely of Marshmallow Peeps.

Home to several unusual artifacts, including a huge painting of George Washington.

One of the few places where you can explore a 1918 paddlewheel steamboat from stem to stern.

At the center of this cemetery stands a 2,000-year-old burial mound of the Adena culture.

This historic Ohio bridge is adorned with fanciful locks left behind by loving couples.

A moving tribute to a leader of the American abolitionist movement.

The giant birds honor two native North American species.

This massive, ancient stone was disassembled and then put back together again.

A memorial to the tens of thousands of Irish who fled to North America during the Great Famine.

The Incredible Hulk, Yoda, Mulder and Scully, and many many others watch over the mean streets of Toronto.

A collection of human remains, animal body parts, and other macabre curiosities all legally for sale.

A well-preserved network of cavernous tunnels have spent silent centuries removing Toronto's waste.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

A collection of birdhouses await curious motorists and avian squatters.

On Hurricane Island, a former ghost town has been transformed into a forward-thinking research center.

Plaque remembering the 18th century forced relocation of Acadians.

The remains of a large iron mill that once stood in the remote woods of northern Maine.