This fantastical waterfall is hidden in a cave located in a cracked cliff.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

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

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

An artistic tribute to the famous singer, just around the corner from where he was born.

This London plaque marks the spot where David Bowie's famous alien made his debut.

Abstract dinosaur models in London.

Banksy gives themself artistic license with this piece of London street art.

The remains of Crystal Palace Great Exhibition of 1851.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

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

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

The history and future of cannabis.

The world's largest wooden structure.

Neo-cave art on the macro scale.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

The UK's oldest theme park slowly slips away.

Mountain where Jesus was first tempted by the Devil.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This cemetery features modernist statues as strange as its name.