A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

The television series' iconic giant foot was borrowed from this classical painting.

One of America's founding fathers lived in this London lodging between 1757 and 1775.

A statue of the original Pearly King is hidden in a church's crypt.

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

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

The real clothing store that inspired a fictional spy organization's front.

The collection contains over 25,000 items and details the painful dental practices of the past.

A memorial to a dog that inspired rioting in the streets of London.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

The townhouse where the English poet created some of his most influential work has been preserved in tribute.

This unique bridge curls up like a caterpillar to let boats pass and then unfurls again to span a small canal.

This overlooked street light once served as a KGB dead letter box.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

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

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

Two tombstones associated with the much-beloved children's story.

Hidden on two floors of downtown building, the library has an incredible deal on rent.

A former nuclear facility during the Cold War turned nature preserve.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

What is it about mushrooms that makes people wish they lived inside of them?

A museum that houses the world's largest collection of ventriloquism dummies.

Where beautiful signs live on forever.