A crucified and bearded female saint.

Microscopic scenes; some call it novelty, some call it art.

Two stunning 17th-century libraries and a cabinet of curiosities.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

A wonderfully eclectic Victorian aquarium lies in the basement of the Horniman Museum.

A historic hill of tall tales, with one rather special tree.

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

Art Deco and “Wrenaissance” mash-up, this recently restored royal residence has been home to kings and comes with secret monkey passages included.

A monolithic monument in Greater London.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

These stained-glass windows are all that remains of a building that was the target of one of the biggest explosions in London after World War II.

One of London's oldest houses contains a mixture of both old and modern features.

At the center of London’s oldest roundabout stands an obelisk that was erected in 1771, but spent several decades elsewhere.

Shiny Brutalist box commemorates a pioneer of electricity and houses a railway transformer.

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

A tribute to the intrepid explorer and his crew who perished in terrible conditions on an ill-fated expedition to the Arctic.

Sometimes called the Banksy of Madrid, Muelle was a pioneer of street art in the Spanish city.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.

Automatons that were once removed after one fell from the building.

This sculpture pays homage to the street sweepers of Madrid since its inauguration in 2001 in Plaza Jacinto Benavente.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

After the queen of Spain had a dream where these statues fell and crushed her, they were removed from the palace and given new homes around Madrid.