Man-made cave with enigmatic carvings, some say made by the Knights Templar themselves.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

This stretch of the River Severn where large waves flow against the current is the birthplace of river surfing.

This sculpture is an instrument played by the swell of the seas.

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

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

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.

This haunting stone chasm is a hotbed of mossy rock and English legend.

This tiny little pool is said to be home to a malicious mermaid named Jenny Greenteeth.