This sprawling art park is filled with sculptures, nature trails, and art workshops.

Take an underground boat ride through a former hydraulic raceway that was built in the late 19th century.

These unique rock formations were created during the Ice Age.

Narrow gorges and deep pools created by long-ago glaciers.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

A miniature golf course crafted inside the world's largest simulated cave.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

The first neighborhood to implement the Garden City model in its suburban planning.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

An extraordinary collection of vampire-themed antiques lurks on the second floor of a store.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

This once sprawling resort now sits abandoned, filled with graffiti and vibrant colors from an era long passed.

A reservoir of vintage pinball machines and arcade games for the nostalgic and thrill seeking.

A collection of unique outdoor sculptures surounded by the beauty of nature.

What happens here stays here – unless it affects the whole world.

Three acres of mythology-inspired sculptures are visible from the highway.

One man's swirling six-acre monument of stone.

A natural gas leak provides a flickering flame beneath a waterfall.

Collapsing castle on the Hudson river was once the storage site of military surplus business.