In the ruins of Glastonbury Abbey lies the alleged resting place of the legendary king.

The oldest residential street in Europe also features an optical illusion.

This astronomical clock is the second oldest in England.

Banksy's image of a naked man dangling from the window of a sex health clinic.

This pedestrian footbridge honors Pero Jones, an enslaved African who lived in Bristol.

An array of ancient artifacts from Bronze Age Bristol and other civilizations are housed in this museum.

The Bristol Camera Obscura housed in an ancient windmill.

Britain’s longest ancient monument, this great 8th century earthwork was built to mark the boundary between what would become England and Wales.

The largest known medieval map of the world.

In 1977, an eccentric book lover formed a micronation for book lovers.

Rare collection of medieval books under lock and key.

Four hundred years ago, this turned-about message was carved into one of Winchester Cathedral's exterior walls.

One of the country's largest diving schools set in a picturesque nature reserve.

This 700-year-old storehouse was a POW jail, aviation workshop, and Titanic memorial before becoming a brewpub.

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

A massive marble foot is tucked away in a small alley near the Pantheon.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

A forgotten "city of water" underneath the famous Trevi district.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.