Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

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

This Paris art space celebrates the creativity and ingenuity that springs from abject poverty, especially in Africa.

This banal Parisian entranceway is not what it seems.

Dedicated to the art of hunting, with juxtapositions of contemporary art.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

The video game-themed street art first popped up in the French city.

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

This chimerical bridge/tunnel appears to dead end right into the sea.

This antique clock once gave the most accurate time in the area.

The Lund University's former gym houses a museum focusing on the creative process of art.

The standard measure of Lagom, a measure of what is enough.

The marker that allows students all over the world to be late for class.

These ancient rune stones plucked from the countryside now call this university park home.

Home to 200 plaster casts of Scandinavian proboscises.

The indecision over what to place in this square was immortalized with a plaque.

This Swedish astronomical clock was in storage for almost a century before its glorious workings were put on display once more.

The Corinthian columns that towered over Abraham Lincoln’s inauguration stand proud.

Once the supplier for noteworthy projects like the National Cathedral, this old brickworks now lies abandoned.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

The narrowest house in America is seven feet of pure spite.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”