A beautiful geyser under environmental threat.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

Live chainsaw carvings of tiki statues aim to keep a tradition with ancient roots alive in this small Delaware town.

An Olympic hero stripped of his medals is buried in a town he never visited, which took his name after his death.

This jail which was in service for over a century is now open for curious visitors.

A winding, cliffside stretch of road overlooking the Delaware River.

Whimsical artist house in the New Jersey woods.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

This demolished goliath of American industry once loomed over the depressed town it once made thrive.

Narrow gorges and deep pools created by long-ago glaciers.

Since the 1930s, this Pennsylvania town has celebrated the humble tomato.

The graffitied ruins stand hidden within the Pennsylvania woods.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

The only surviving fragment of the lost Narragansett Pier Casino.

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

A railroad magnate's replica village has become home to a genetic seed bank for rare breeds of livestock.

A 60-room castle constructed by a horse-racing heir.

Mysterious stone tower featured in many alternative histories of the New World.

Dedicated to the explorer who opened Japan to the West.

The oldest still-operating tavern in the United States was once owned by a pirate.

The second oldest Jewish graveyard in the U.S. is tiny, with connections to George Washington and Henry Wadsworth Longfellow.