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

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

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

One of 100 “Whaling Wall" murals painted in 13 different countries by a renowned marine life artist.

The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

Public outcry led to this bridge's unique character which celebrates a giant frog battle and also sewing.

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

This small-town pizzeria won the Hollywood lottery.

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

Underground tunnels remain beneath this abandoned mental asylum.

Maine's oldest diner also happens to win acclaim for its elevated comfort food.

It was once used as a classroom to teach mining skills to local high school students.

After this former brothel closed, its interior remained almost frozen in time.

This oddity shop contains everything from antique tools to a human skeleton.

The mayor made the declaration in 2004.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

This giant meditative chakra sits peacefully in the Flathead Valley of western Montana.

One home in the historic strip hides secret compartments and the ghostly songs of long-gone canaries.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

The old fire tower is one of the last of its kind in the United States.

While he no longer has an eatery to give him context, this off-brand Paul Bunyan still holds his giant hot dog with pride.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

This once-booming Gold Rush town is now home to a herd of feral donkeys.