The sign at the garden gate reads: "These Plants Can Kill."

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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

Large Hadron Collider and the Birthplace of World Wide Web.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

The Bristol Camera Obscura housed in an ancient windmill.

Recently restored menagerie of Victorian-era beasts.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

The most loyal of little dogs, or a Victorian era publicity stunt?

Huge winged monument in the United Kingdom.

This innovative steam machine was no doubt the most famous of the pioneer locomotives.

A Victorian school for poverty stricken waifs has been preserved as a museum to their donated education.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Explore nearly 400 years of English middle-class home life.

Pop culture has helped to keep this iconic British building from being destroyed.

Charles Babbage's proto-computer, painstakingly brought to life.

Traveling collection of amazing automata.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Eighty million natural history specimens call this gargantuan museum home.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

One part local history, 99 parts gruesome haunted house.