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

The narrowest street in Paris.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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

France's most famous cemetery, with some of its most curious tombs.

This 18th-century sundial was designed to calculate the date of Easter each year.

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

Saintly bones pressed into a wax effigy of a Catholic superstar.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

A complicated contraption for telling time by the moon.

One of several Lilliputian portals that are ready to transport passengers to other dimensions, if they can find them.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

A monument to one of the most famous modernist Chinese poems and its poet.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

An ordinary lamppost situated in the middle of Cambridge has an unusual moniker and history.

The taxidermied remains of a once-great parrot.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

This home on a quiet suburban street is completely covered with vibrant mosaics.

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

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.