One poet's handmade, anachronistic home.

This muddy wooded valley and the ancient structures it hides are said to be the favored haunt of the legendary Friar Tuck.

An everyday Jackson Heights bodega conceals a Mexican seafood paradise.

At night, a grove of towering redwood trees growing through the pavement block out all light from the so-called “Dark Park” of Madrone Avenue.

With nickel-steel armor and three-inch thick bullet resistant windows, FDR's train was a rolling fortress.

The former global standard for the exact mass of one kilogram sits under lock and key outside Paris.

A century-old magnolia tree is the only living landmark tree in New York City.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

Where the rich wintered in Pasadena.

The Los Angeles flood disaster that took 400 lives and ended the career of William Mulholland.

A porcelain company's former dumping ground, completely covered in pieces of collectible ceramics.

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

Canada's largest dinosaur skeleton was hidden away in storage for more than 40 years.

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

The walls of the iconic dome are hollow and have a secret stairway.

The Hanshin Expressway goes right through its 5th, 6th, and 7th floors.

This Scottish bay still reveals evidence of its days as a seaside swimming pool.

A unique music museum housed in a historic Boston theater.

This Old West prison built into the side of a cliff was said to be inescapable.

A museum dedicated to man's boldest venture.

Crumbling pink walls and murder memorials preserve the pioneer history of Joshua Tree.

Hidden on the 7th floor of a historic building, this Cajun spot features wall-to-wall bottles of hot sauce.

One of the world's largest collections of pharmaceutical artifacts.