This tiny home was originally a narrow alleyway.

The best-preserved ancient theater in the world.

This once-derelict building is now one of the most beautiful bookstores in the world.

A lush indoor jungle fills this bustling Madrid transportation hub.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

The only thing sweeter than the potatoes is the canine proprietor of this roadside stall.

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

Lyon's "Wall of the Silk Weavers" is one of the largest murals in Europe.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

A mountain of conch shells created by centuries of fishermen.

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

The first museum in the United States dedicated entirely to posters.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

Seattle’s Whimsical Mural Master.

A collection of odd-shaped and quirky sounding instruments handmade by a midcentury inventor-composer.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

The tiniest tiki room in San Diego.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

The classic Atari game's iconic aliens have invaded downtown San Diego.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

A couple turned their front yard into an artistic masterpiece.