This historic pub is a hidden gem for fans of Lewis Carroll.

This Norman castle was once the site of a Victorian-era prison, and now exists as a luxury hotel.

Order “Proletariat’s Cutlet” at this communist-themed restaurant allegedly once visited by Lenin.

This library dates back to the late 17th century and was one of the first public lending libraries in England.

The spot where Oxford garnered its name was also home to a medieval philosopher and includes a house covered in statues.

This giant wooden treehouse within a sprawling garden has its own eatery.

Take afternoon tea in a 17th-century almshouse.

An ordinary lamppost situated in the middle of Cambridge has an unusual moniker and history.

A statue representing a lost Roman profession that was vandalized for centuries.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Legend says this public grazing area hasn't been plowed for thousands of years.

The shop where the girl who inspired the beloved character once bought sweets is now a book-themed commercial curiosity.

Locals affectionately dubbed this World War I memorial "Tommy."

The Art Deco artwork depicts gilded carriers of deadly illnesses.

This nondescript building was the birthplace of Morris cars.

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

A series of carved figures that scandalized British society.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.