On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

The world's largest frame offers spectacular views of the city's past and present.

This futuristic building is yet another architectural wonder in Dubai.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Eighty million natural history specimens call this gargantuan museum home.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

This museum houses an imposing skeleton army comprised of creatures great and small.

This recessed garden protects thousands of mountain plants by creating its own microclimates.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

A haunting collection of the vanished and disappearing natural world.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

After immigrating to Paris in the 1970s, two brothers from Laos built a grocery store empire.

An eatery for UFO seekers on the Extraterrestrial Highway.

This sign designates the road that leads to the infamous Area 51.

The birthplace of Las Vegas is now preserved as a historic and natural area.

A surreal, interdimensional shopping center and portal to another universe by Meow Wolf.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.