At almost 1,000 years old, this is the oldest known door in all of Britain.

Giant, friendly pelicans in Central London, the most unlikely of places.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

This lovely little burbling creek is actually a deadly waterway that has dragged down everyone who ever set foot in it.

These planks were originally installed to hold the dead.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

A monument to the real explorer and bear who inspired characters in Philip Pullman's 'His Dark Materials.'

One of the shortest streets in York has an especially odd name.

Follow the original medieval paths that wind through this intriguing section of the city.

Makers and sellers of the original and finest York Ghosts.

This popular square's history as the former site of a church is right beneath your feet.

This network of narrow, medieval passages has the most delightful name.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

Prehistoric animals decorate this popular outdoor park.

The world's longest known cave system.

Final remnants of the 1895 Cotton States and International Exposition.

The remains of a religious colony, its amusement park, zoo, and baseball empire.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

Unruly residents were housed in this one-person cell until the Black Maria arrived.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This ossuary is more than five centuries old and is heralded as one of the finest in Switzerland.