Several plaster noses are hidden in plain sight around London's Soho neighborhood.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A student driver's nightmare.

Famously misunderstood wonder of the ancient world

A tongue-in-cheek arcade where the games are based on everyday life.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A scene from one of Hungary's most famous novels.

A diminutive statue that was inspired by the sculptor's own daughter.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

The metal leaves on this tree are engraved with the names of Holocaust victims.

The world’s first statue of the late Apple co-founder.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

A two-way chairlift system between Zugliget and the highest point in the city.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

This quaint Hungarian railway system is operated exclusively by children between the ages of 10 and 14.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

Museum dedicated to the terror regimes of Hungary.

Once the home of a hermetic monk, this cave now houses a small church.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This North Korean pegasus statue was built as a symbol of the speed and perseverance of North Korean workers.

Pyongyang’s Arch of Triumph is the second tallest triumphal arch in the world.