A World War II-era submarine is stuck in the mud in New Jersey.

Originally built in 1869, this castle is currently part of Felician University's campus.

Step inside Lucy, the world's largest "elephant."

It wouldn't be long after purchasing this farm, Brown would lead his siege on Harper's Ferry.

At this farm in upstate New York, the former president plotted his reelection campaign.

This high-perched pachyderm marks the memory of not one, but two elephants gunned down in small New England towns.

The shared home of a utopian commune that practiced "free love" a century before the hippies.

A one-ton statue of Steve Rogers beautifies the entry to a Brooklyn Bed, Bath & Beyond.

Whale bones, scrimshaw, and sperm oil make up just a part of this comprehensive collection of whaling history.

The Binghamton area is home to six of the last remaining hand-carved vintage carousels.

This two-room factory has been cranking out the musical signifier of zaniness for a century.

This statue commemorates the meeting of the most influential minds of the women’s rights movement.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

Astonishing collection of helmets, scientific instruments, and medical models.

One of the earliest bowling lanes in the U.S. doubled as a sewing school during a time when women had little job opportunity.

The rustic think-space of famed naturalist John Burroughs stands exactly as he left it.

This abandoned ironworks was once the most important military supplier in America.

The oldest continuously inhabited street in America.

This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

A sewing machine tycoon built this miniature castle for the people and to beautify a lakeshore.

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

This tiny little island has, as the name says, just enough room for its single house.

The attic and basement house two museums stuffed with oddities like swallowed spoon handles and a shrunken head.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.