You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

A martyred saint built a nunnery and school for girls here known as the "Parthenon."

The anatomical-pathological collection of a man who changed surgery.

The preserved left hand of a saint once known as "the Pearl of York."

Cycle the solar system—from the sun to Pluto—right here on earth.

A boutique perfumery fashioned to look like a Victorian-era shop.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

A little slice of Japan and its aesthetics in London's Holland Park.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

The bell that once tolled atop a lost Edinburgh gate now hangs for all to see.

The sole surviving medieval street cross in Scarborough.

This 19th-century Turkish bath house survived the Blitz of London and is now an events venue.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

Preserved behind glass, the ruins of a medieval building used to store human remains.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

A series of waterfalls create the illusion of perpetual rainfall in this hidden gorge.

This pub boasts a curious history and may have inspired a Dickens character.

The tomb of history's greatest potato promoter is surrounded by tubers.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

For more than a century, revolutionary graffiti has marked the wall of a Parisian church.

Dedicated to the art of hunting, with juxtapositions of contemporary art.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

The video game-themed street art first popped up in the French city.