This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

The world's largest reflecting pool is just two centimeters deep.

A poem by Arthur Rimbaud is inscribed on the wall of a street that, while it is only one block long, plays a key role in multiple novels.

This Parisian gem is one of the most incredible ethnographic museums in the world.

A large portion of this navigable canal runs under Paris's famed boulevards.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Paris' linguistic guide to the international language of, yes, love.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

The site where two doves fell in love.

This demon atop the Notre-Dame de Paris looks utterly bored.

This stone angel is one of the biggest caryatids in all of Paris.

One of Jeff Koons’s largest sculptures and his first commemorative work.

This modest marker near Notre Dame identifies the very center of Paris.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

A bronze sculpture in the heart of Portland represents Maine’s most defining industry.

Since the 1700s, this old barrel has acted as a post box that relies on the kindness of travelers.

An exhibition devoted to the life (and posthumous taxidermy form) of the last known representative of the Pinta Island Tortoises.

Quito's historic, main square dates back to the 16th century.

Earliest version of the American flag can be seen atop the hill where it first flew.

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

This plaque commemorates the birthplace of the longest-ruling Thai monarch and the third longest of any sovereign state

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.

A Harvard-area eatery preserves the uncovered tiles of its century-old predecessor.