Inside this gallery is amazing folk art from across Mexico.

The walls and ceilings of the "Mexican Sistine Chapel" are almost completely covered with mural, sculpture, inscriptions and oil paintings.

An artist's suburban abode looks like an architectural fever dream.

This botanical garden boasts sculptures, industrial ruins, and an endorsement from the Dalai Lama.

This art shopping center still boasts pieces of its past as a textile factory.

Colonial architecture meets urban art in this sprawling open-air gallery.

Quaint, disturbing, and macabre objects are all on display at this intriguing collection of medical instruments from bygone eras.

This fantastic museum honors Gloucester waterway heritage.

Rare collection of medieval books under lock and key.

The largest known medieval map of the world.

Hundreds of caves once used to store grains and animal feed.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

A monument at Alicante Marina honors a little-known hero of the Spanish Civil War.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

Once used to calculate the various levels around the country.

Legends surround this natural rock formation that looks like a Moorish king wearing a crown.

In addition to escorting prospective couples to and from ballrooms, this lane was also a place for gentlemen to settle scores.

Eighteenth-century home, where Herschel discovered the planet Uranus.

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.

This restaurant's specialty is "a major enigma for food historians."

Below a historic English market town lies a secret underground city complete with kitchens, laundries, storerooms, and an underground lake.

Asthmatic Charles Hyett's son built a fantastical garden for his father to convalesce in, alas it was too late.