A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

A Caribbean chef recreates his enslaved great-great-grandmother's dishes inside the home she purchased after buying her freedom.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

At the right time of day, sunlight floods through the roof of this cave and illuminates the small pavilion hidden within.

This impressive tunnel was dug entirely by hand over the course of 36 years.

These eerie outliers of the lightning bug family glow a mysterious blue color.

An ancient city hidden in the heart of the Sierra Nevada mountains.

World's largest cave was only discovered in 1991, and now offers tours to the public.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

This women-run eatery and cooking school is putting India's long-neglected tribal cuisines back on the menu.

The remains of diamond fever taken over by the desert.

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

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

The only thing better than tubing down New Jersey's scenic Delaware River is doing so while eating a hot dog from a giant floating stand.

A garment factory hides a small Dominican eatery in the hallway to its freight elevator.

A natural gas leak provides a flickering flame beneath a waterfall.

From the dishes to the art, this Michelin-starred restaurant orbits around one beloved French melon.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

Featuring a meatless buffet fit for kings, this family-owned Zurich eatery is considered the oldest vegetarian restaurant in the West.

At a Bangkok bistro, one pot of beef stew has been cooking non-stop for more than 45 years.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!