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

This Singaporean food-court stall was home to the world's cheapest Michelin-starred meal.

This naval gun is fired every day at noon, an odd timekeeping tradition the origin of which is local legend.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

This monumental intersection commemorates the day Okinawa switched to driving on the left.

This small piece of Michigan is entirely surrounded by Ohio.

Reportedly 1,400 years old, this may be the first of the Fiji Mermaids.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

A sanctuary for sickly, stray, or wounded donkeys.

A 5,000-year-old city in Peru holds the remains of a stunning set of astronomically-aligned pyramids.

This virtually windowless mass of smooth concrete is the only Catholic church in the city.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

A centuries-old forgotten underworld lies beneath Malta.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

Launch site for nuclear war against Western Europe.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

Inside this building is another country within Rome, a sovereign entity without a physical territory.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

The yawning maw of this pagan visage is said to bite off the hands of liars.

The glowing blue Nymphaeum of Emperor Tiberius.

A stunning Victorian abbey and walled garden on a lakefront.

For more than two centuries, this family-run establishment has been serving up some of Ireland's best oysters.

A hugely vast Irish landscape of barren rock that stretches for miles.