Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The oldest known university in the world is in Fez, Morocco.

Local authorities nearly destroyed this mural before a viral video rallied international support to save it.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

Morocco’s modern capital was once a haven for Barbary pirates, who went so far as to establish a republic of their own.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

This former community granary is now a lonely mountaintop shrine.

One of the tallest waterfalls in Africa is also home to a population of monkeys who enjoy the waters and the occasional guest.

Created by one of England's most prolific labyrinth designers, inspired by Bath city history.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

The accidental discovery of this gilt bronze head led archaeologists to find the Roman Baths in the city of Bath

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

An unusual artwork dedicated to a unique man that entertained people visiting Cambridge while raising money for charity.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

Iconic pyramid from famed British architect Norman Foster designed to represent all of the world's religious faiths.

A modern tower, symbolizing the legend of a golden egg on top of the tree of life.

An entertainment center in a huge transparent tent.

A sober museum housed in the original administrative building of one of Stalin's largest gulags.

An art museum inside an active factory.

A scale model of Russia so big visitors are offered binoculars to rent so they can see the whole thing.

Dark, eerie exhibits make for a surreal exploration of the subconscious.