A fortified city, home to a remaining population of five families

Detailed sandstone carvings show an array of symbolism and adorable animals.

Beasts and branches swirl in sandstone carvings, interrupted by one strange creature.

The largest known medieval map of the world.

Rare collection of medieval books under lock and key.

Museum celebrating the history of computers, especially their role in codebreaking.

Home to Alan Turing, the cracking of the Enigma code, and Captain Ridley's shooting party.

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

A complicated contraption for telling time by the moon.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

An unusual round church in London with a Templar past.

A cluttered and astounding collection of antiquities and curiosities.

The anatomical-pathological collection of a man who changed surgery.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Mining town from the late 1890s, once home to Calamity Jane.

The only road through the heart of Glacier National Park.

"Polynesia on the Plains."

New fungal and bacterial species call this deadly lake home.

An entire town preserved as a historic landmark.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

Sofia's legislative center is continuously reinventing itself.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.