This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

Home to Alan Turing, the cracking of the Enigma code, and Captain Ridley's shooting party.

One of the figures in this Celtic sculpture continues to puzzle archaeologists.

A domino effect created with Britain’s iconic telephone boxes.

When the public was consulted about a new piece of street art, they naturally asked for an enormous metal dragon.

A 17th-century doorway in a small Sabine village is a portal into the mysteries of alchemy.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

This medieval mountain town is also known as the "Village of Streams."

Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

An ancient rogue artist community hidden next to one of the world's most glitzy and glamorous cities.

A sculpture serving as an homage to Pope John Paul II.

This is the oldest Roman-made bridge in the city still existing in its original state.

Hidden in a high mountain cave, this hermitage dates back to the ninth century.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

A medieval Italian village is fighting depopulation with this vibrant annual street art festival.

Hidden in plain sight, this creepy sculpture watches from above.

In an isolated field near a dilapidated barn stands this chilling portrayal of the plight of the Nuba peoples of Sudan.

This lovely ancestral home inspired the author D.H. Lawrence, and features a tunnel made out of a living willow.

The wreckage of an old coastal trading vessel is only visible at low tide.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

A medieval stronghold rising over the ruins of ancient Roman villas along Rome's southern coast.

The old church, buried by the 1784 Mount Vesuvius eruption, is a remarkably well-preserved place where people now pray for the souls of the dead.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.