Pizza with a side of fine art.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Founded as a refugee camp, now a popular tourist spot.

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

These strikingly colorful paintings were created by a mysterious Mesoamerican civilization.

These enigmatic columns tower over the ruins of an ancient Toltec city.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

The quintessential Japanese rock garden has existed for more than 500 years.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Iconic red and white plaques show the creative names invented to navigate the city streets.

This incredible college library is a visual masterpiece of mosaic art. It also looks kind of like a giant boombox.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Red frames showcase remnants of one of New York's original subway stations.

Baroque celebration of the end of the Great Plague of Vienna.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

A sprawling Victorian farm that has been surrounded by a capital city is one of Canada's greatest treasures.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.