The largest known medieval map of the world.

A strange and ancient landscape hides the dark, cavernous remains of a 5,000-year-old flint mine.

A large collection of steam engines, organs, and fairground attractions.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

England's most notorious suicide spot.

The remains of an ancient bathhouse sit inside this aptly-named pub.

The final resting place of England's most notorious bandit.

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

The little-known second castle that William the Conqueror built in York.

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

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

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

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

A building so large that it has its own weather.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The busy transport hub is home to the tallest airport slide in the world.

Perched above the bustling town of Kerak is a sprawling, ruinous castle that has witnessed nearly a millennia of Levantine history.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.

Just outside of Jordan's capital lies an ancient castle and intriguing caves dating back to the Copper Age.

A bathhouse from the second Islamic Caliphate decorated with frescoes of constellations, pleasure gardens, and naked ladies.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.