One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

A small concrete monument remembers a German cold case involving incest, farm tools, and psychics.

The remains of the worst maritime disaster in the history of the "Graveyard of the Pacific."

The Vermont square that inspired Shirley Jackson's "The Lottery."

This roadside attraction attracts kids with dinosaurs before blindsiding them with geology.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Over fifty whirling pools left by the glacial age.

This locally-famous crevasse in New York State is icy all year round.

A monument to the Mohawk people stands along an old Native American trade route.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Resonating tubes make music from highway overpass.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.