There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

A book bound in the skin of an infamous criminal, along with countless other specimens.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

A century-old tradition has culminated in a small but singular collection of feline effigies.

An incredibly well-preserved piece of ninth-century Viking poop.

One of the shortest streets in York has an especially odd name.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

This disused Cold War bunker has been restored to all of its early 60s glory.

This network of narrow, medieval passages has the most delightful name.

Follow the original medieval paths that wind through this intriguing section of the city.

Arthur, Merlin, and Guinevere are among the largest and oldest satellite dishes on the planet.

Perhaps the only prehistoric monument with its very own public bus stop.

A circle stone within a stone circle.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

The largest greenhouse in the world is home to over one million types of plants.

A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

The bizarre headgear looks like it was made for a fool, not a king.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

19th century tunnels burrowed under Liverpool.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

A gorge full of caverns where early humans lived alongside cave hyenas, giant mammoths and wooly rhinoceroses.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

Some of England's last cave dwellers lived and worked within this huge cave.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.