The only castle in North America to ever house European sovereigns.

66,000 pieces of art, donated by one of the world's richest men.

No passport is required to eat around the world at this elegant restaurant.

An extravagant 18th-century fountain built with bits of broken ceramic.

A 17th-century bezoar, dirt from an infamous site, and other curios decorate this unusual bar.

The wooden house where the jazz great learned to play the piano.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

This Japanese-inspired park showcases the city's peculiar trends for naming features after foreign rulers.

Worm salt and other local ingredients are on the menu at this cult favorite ice cream shop.

Beneath the most controversial monument in Mexico City is a cultural center that exhibits only digital art.

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

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

Unruly residents were housed in this one-person cell until the Black Maria arrived.

Dubbed the "smallest church in America," this tiny sanctuary was a local grocer's dream come true.

Opened in 1976, this monster-sized version of the fast-food franchise is sometimes called the Epic McD.

Every winter, this tiny islet on Florida’s Gulf Coast is swarmed by some of the largest birds on the continent.

This Buddhist temple is home to a number of towering statues spread over a peaceful wooded park.

A creative deviation in this post office's design was once a source of controversy.

The hot chocolate here all stems from small, sustainable microproducers in Chiapas and Tabasco.

This extraordinary art museum is like a secret world on the edge of Mexico City.

Explore the atmospheric ruins of an abandoned convent in the dense forests of Mexico's first national park.

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

Frida Kahlo's childhood home, now a museum of her life and works.

An island filled with hundreds of hanging, decomposing, decapitated dolls.