The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

An abandoned church gets a second life as a massive beer hall and event space.

This Asian-inspired tower in a lush urban park provides spectacular panoramic views of Baltimore.

The subtle science of a master molecular gastronomist.

The crumbling remains of a once-grand building.

An oddities shop that dabbles in the deathly and beautiful.

A tiny, unassuming park in Tampa that belongs to the Republic of Cuba.

Dedicated to one of the most iconic cinematographers of the Golden Age of Mexican Cinema.

A beautiful example of 18th-century engineering still standing tall.

An elegant space dedicated to a master of romanticism and minimalism.

In Coyoacán, a pair of coyotes crown a public fountain in reference to the ancient Aztec name of the borough.

Some charming, but sadly, unloved animal statues call this park home.

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

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

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

Diego Rivera's massive tiled fountain and failed infrastructure project.

Astonishing collection of helmets, scientific instruments, and medical models.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

The real-life site of Ichabod Crane's infamous gourd attack.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

Its unique collection details the history of the state's svelte railroads.

This Art Deco theater is the last remaining opera house in the “little Broadway of the North.”

A decidedly out of place statue memorializes the Blues Brothers characters at this water bottling plant.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.