Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

Mexico City's largest market contains a Willy Wonka-esque wonderland.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

Psychedelic murals coat the inside of a nondescript research library.

This clock was gifted to Mexico as a show of gratitude for its long history of welcoming Arab migrants.

This one-window stand has been home to a giant vat of slowly simmering meats and an array of unique tacos for almost 50 years.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

This mosaic made out of books represents one of Colonial Mexico's most important literary figures.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

A grand entrance to one of the world's smallest Chinatowns.

This old-school café is famous for serving coffee, chilaquiles, and the Cuban Revolution.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

Part bookstore, part café, and part forest.

Fantastic views and thousands of love locks.

Go surfing on this urban wave, "hacked" by local surfers.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A brother statue swap has adorned this building's facade for centuries.

Glasgow's own "tipsy" temperance monument.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

A masterpiece of Rationalist architecture in the center of Madrid with lizards on it.

This little sun pays homage to a massive gate that once stood at this location.

Once a resting spot for King Fernando VII.

A window into a long-lost world, these colorful tiles advertise a long-defunct range of purgative teas, harmless smokables, and diarrhea cures.

This unassuming bookstore in the heart of Madrid is one of the oldest in Spain.