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

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

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

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

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

This recreation of a 19th-century dime museum is full of oddities.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

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

The ruined remains of a coal mining ghost town are hidden within the woods.

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

Built in the 1970s, this curious modular home found new life as a sundae-shaped ice cream stand.

This massive sycamore tree has been labeled as one of the largest in the state.

This stately 19th century library pushed architectural boundaries at a time when the public library movement was just taking off.

A museum and research center dedicated to preserving the history of Rolls-Royce and Bentley motorcars.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.