A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

Ship skeletons haunt Baltimore's waterways.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

The world's largest Holstein cow.

A true roadside icon standing on the same plains that the herds once roamed.

One man's quest to save his town with a trail of record-breaking sculptures.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

Just a man taking his prehistoric pet for a stroll.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A smoke stack so large, the Washington Monument could fit inside!

New fungal and bacterial species call this deadly lake home.

The only road through the heart of Glacier National Park.

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

The first declared National Monument in the United States.

This rustic old building is said to be the most photographed barn in America.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

A roadside collection of over-sized iron creations that are a bit more macabre than most.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Intertwined, interspecies trees which locals believe can grant boons to lovers.