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

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

An oddity of a bygone era that stills functions today.

Tucked away in a London Tube station, this 1920s linear clock shows the time across the world all at once.

A museum and apothecary garden devoted to the history of frontier medicine.

This unusually circular centenarian barn became a Route 66 icon.

Built from oil field parts and resembling a teepee, this abandoned mid-century church is hoping for a comeback.

Home to the story of the outlaw turned funhouse mummy, Elmer McCurdy.

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

London's smallest police station is barely the size of a phone booth.

A naturally mummified 2,000-year-old man.

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

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

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

Public access to clean drinking water was an instant hit among the masses.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

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

After nearly 60 years, there's still a bear at Paddington Station looking for help.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

Recently restored menagerie of Victorian-era beasts.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

A funhouse dummy that turned out to be a real life mummy, Elmer McCurdy is an urban legend come true.