The oldest alley in San Francisco is paved with a reminder of the city's original shoreline.

This effigy was crafted to annoy a neighbor after a civil dispute over a foul smell.

Edinburgh’s version of the Sistine Chapel is this former church, with an interior covered in paintings done by one woman over the course of nearly a decade.

A public fountain that spouts "health water" from a nearby spring.

Designed to celebrate the queen's 40th birthday.

This severely painted building has a twisted connection to the witch hunts of the 1640s.

This neon sign is an homage to an Alfred Hitchcock film.

This hill nestled in the Scottish lowlands was a ritual site for over 4,000 years.

A bench and a bridge pay tribute to Birmingham's favorite heavy metal band.

A 150-year-old steam locomotive crosses the southern half of the island daily.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

Outside of one of Britain's most renowned social clubs, a step installed specifically for the Duke.

The main gates have been locked since 1745 and will remain so until the Stuart Dynasty returns to the throne.

Water-themed sculptures guard this unusually square structure.

This astronomically-aligned stone circle was the first of its kind to be built in Great Britain after a 3,000-year hiatus.

The world's oldest surviving music hall was also once a freakshow.

Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

The so-called "Father of Las Vegas" had the city's first telephone installed in his office in 1907.

An abandoned convention space that has been left to the homeless and the radical.

Indents in the pavement are all that remain from a grisly death machine in Paris.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

This banal Parisian entranceway is not what it seems.

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