The tallest stationary dunes on Earth also happen to sing.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

Created by one of England's most prolific labyrinth designers, inspired by Bath city history.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

A town church once nearly submerged by the damming of a river is now hauntingly visible as the water recedes.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

Pirates had to be ousted from the land where this now ruined Louisiana fortress was built.

A maritime museum holding the remains of Blackbeard's pirate ship.

The enigmatic and seldom visited ruins of a Mayan city-state.

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

This singular broken monument, now housed in a museum, was the cause of a worldwide "Mayan Doomsday" phenomenon.

These azure waters were thought to lead to the Mayan Underworld.

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

This picturesque island graveyard is the final resting place of dozens of notorious pirates.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

This legendary city has been a tourist attraction for centuries.

A spectacular cave and a beguiling lake.

The hallucinogenic center of the ancient world.

Ancient Greek oracle of the dead.