A series of five defunct panopticon prisons in Cuba.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

A glowing underwater cliff attracts marine life and divers in equal measure.

Send a postcard while vacationing with Satan.

Where a rare geological phenomenon created a section of rock that resembles a checkerboard.

Storms, funding, and in-fighting have kept this Bermuda church from ever being completed.

A tropical paradise once home to space exploration and military installations.

This popular tourist cave was ignored for almost 200 years before being mined into an attraction.

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

The center of the only hemisphere that awards visitors with a commemorative coin.

This pebble beach is so beautiful that taking its rocks is against the law.

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

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

The home of 1.5 million wood letters for printing is still a functioning workshop.

Before he was America’s most famous preservationist, John Muir was an ingenious mechanical inventor.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

The oldest Roman lighthouse still in use.

This abandoned lighthouse looks like a rusting oil rig, but has managed to survive a number of storms.

An isolated beacon with a history of grisly murder and a view of some of literature's greatest inspirations.