This beautifully situated lakeside Roman settlement was likely built during the reign of the Emperor Hadrian.

This 17th-century pub once had a hole in its wall so the neighboring blacksmith could easily access beer.

A tongue-in-cheek arcade where the games are based on everyday life.

A haunting monument dedicated to the Royal Naval Air Service and the Fleet Air Arm.

A bronze bust commemorates the heroism of the secret agents who led covert operations against the Nazis.

The breadfruit-adorned final resting place of the infamous Captain of the HMS Bounty.

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

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

This open-air mosaic gallery honoring an English artist took hundreds of volunteers more than seven years to create.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

A hands-off space for graffiti artists to hone and display their skills.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

This ancient Egyptian obelisk still bears the wounds of World War I.

A typographic tribute to the many comedic greats who make Great Britain laugh.

Six rock shelters covered in abstract art created by ancient Ugandan tribes.

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

Where Venice's gondolas go for a tune-up.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Destroyed numerous times, this centuries-old bridge has always been rebuilt with its original design.

A visionary Italian architect created an impressive cluster of concrete structures for a family's private tomb.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.