Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

2300-year-old Roman road connecting the empire.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

The most loyal of little dogs, or a Victorian era publicity stunt?

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

One of the largest underground systems runs under Canada's largest urban center.

This "Palace of Purification" has made many film appearances as a dark and sinister headquarters.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Montreal's colorful subway station shows its support of the local LGBT+ community.

A massive Montreal stadium that has seen nothing but trouble since its inception.

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

A unique seaside cave where Aleister Crowley faked his own death.

Living towers made of people that are now recognized by UNESCO.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

Week-long block party becomes a competition for the best decorated street.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

A Korean village where times stands still.