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

This museum inside a museum tells the story of London's timepieces.

A clock designed to run with perfect accuracy for 10,000 years.

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

This hidden green space is the city's second largest conservatory.

A tribute to all the green-thumbed workers who tend London’s public parks and gardens.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

Baroque celebration of the end of the Great Plague of Vienna.

A stunning 18th century pharmacy and medieval chemist's collection.

Something's watching you.

Packed to the ceiling with antique taxidermy and hunting arms.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

This bone-filled cave got its name after they found 140 bear skeletons inside.

Once the legendary capital of the Dacian Kingdom, this city has been reduced to mere ruins.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

A collection of items from a way of life that no longer exists.

Dedicated to a synagogue that was destroyed after having survived World War II.

An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.