This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.

England's most notorious suicide spot.

Every May, townspeople welcome summer with a bizarre pagan parade led by a man wrapped in garlands.

During the heyday of fishing in Hastings, there were more than 100 of these storage facilities.

From battleships to Roman vessels, this museum explores the depths of shipwrecks in the region.

A 13th-century stronghold that has fallen into ruin.

This centuries-old hotel hides a network of secret cellars and passages once used by smugglers.

Also known as Rye Castle, this 13th-century fortification later became a prison and held one of Rye's most famous criminals.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.

The ruins of a Roman fort lie in the shadows of an imposing medieval castle.

This Norman castle has been the scene of assassination plots, religious persecution, and Nazi conspiracies throughout its long history.

A winding cave grotto walkway built to provide employment for veterans after World War I.

A house of bones — but nobody is quite sure to whom they belong.

One English town's celebratory landmark spurred more trouble than anticipated.

These 1,500-year-old remains were found in a mysterious Anglo-Saxon mass grave.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

One of the oldest seagoing boats in the world can be found at the Dover Museum.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

This ancient Irish landscape boasts hundreds of legendary ruins.

Europe's largest prehistoric mound – burial site of a legendary king?

The only pub in the world surrounded by an ancient stone circle.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.