An underground magnet for ever-changing street art.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

A bizarre roadside attraction and the first instance of miniature golf in the world.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

Unknown to many, this sparkling turquoise lake hides amid Oregon's snowcapped mountains.

A cruise terminal that changes the atmosphere of Red Hook's industrial waterfront.

Where the Monitor was launched and ushered in the age of the "ironclads."

2 square block factory in Greenpoint erected in 1936.

These century-old townhouses contain some of the first car garages built in the United States.

2,000 barrels of aging beer hidden in a warehouse at the Brooklyn Navy Yard.

A prized globe signed by Amelia Earhart and Charles Lindbergh sits in the Brooklyn office of the American Geographical Society.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

Ride the subways of yesteryear.

Dothan, Alabama has been invaded by scores of anthropomorphic peanuts.

Colloquially known as "the lynching memorial," this is the United States' first memorial to the victims of racial terror at home.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

A collection of huge Pre-Colombian structures in Alabama.

A rusted metal giant pays tribute to Birmingham’s industrial past.

A miniature city built by a single hunchbacked monk.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.