The "Seinfeld" diner.

The oldest continuously occupied public building in the United States.

Abandoned Air Force base that has fallen into disrepair.

The peaceful gravesite of a rugged wild west gunman echoes the touching story of his last days.

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

Even Henry David Thoreau found this glacial pothole irresistible.

British troops and Prohibition couldn’t stop this spot from becoming one of the United States' oldest continuously-run taverns.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

History is hiding at the Morean Center for Clay.

One of the few surviving examples of the first lock and dam system built on the Ohio River.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

California's first suspension bridge.

Legend says this rock was once a chopping block for public executions.

This cliff-face port is considered a masterpiece of mining engineering.

This monument commemorates the only American soldiers to have directly fought Russians during World War I.

A bizarre house filled with an astounding array of collections.

Eyam took steps to quarantine themselves and keep the plague from spreading.

This North Carolina store preserves a historic moment in America's movement for racial equality.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

Outside San Francisco lies a small clown cemetery and memorial.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

This icon of the Atomic Age now lays dormant.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

Rippling sand dunes frozen in the Arizona rock.