A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

A lover's walk between hilltop towns, decorated with graffiti love notes.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

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

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

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

This massive, ancient stone was disassembled and then put back together again.

The taxidermied remains of a once-great parrot.

The final resting place of soldiers' loyal canine companions.

A six-ton wedding present for the King of the Scots.

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

The celebrated eyesore created by starry-eyed sweethearts.

A historic presidential getaway on the continental United States' southernmost island.

These strikingly barren, rolling red hills were caused by bad farming practices.

Colorful and chaotic stacked hotel in North Holland.

A monument celebrating the idea of reaching inaccessible places.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

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

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

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

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.