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

A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.

Historic town settled in the 19th century because of its convenient location along a popular coal transport route.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

One of the oldest, tallest, and most haunted lighthouses in America.

An unassuming corner inside downtown Orlando's library offers a whole new world of the park and its history.

A historic presidential getaway on the continental United States' southernmost island.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

You’ll feel like you’ve gone through the looking glass at this contemporary art museum filled with glass sculptures of every size, shape, and color.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

A circus legend leaves an unexpected endowment.

This shop also boasts some sweet memorabilia from "Willy Wonka and the Chocolate Factory."

An 18th-century Spanish watchtower made entirely of seashell and concrete.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A miniature city built by a single hunchbacked monk.

Famous for its bio-luminescent inhabitants, known as "dismalites."