Picturesque ruins once held off mighty armies.

Following years of secrecy, the hidden history of a World War II site is being brought to light.

A rare wooden coffin set vertically into the Gothic arch of an ruined church.

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

This 1776 beacon on the coast of Wales is said to have a ghost called Raymond, the last lighthouse keeper.

This park is home to a collection of important industrial and religious sites.

Six neolithic sandstone boulders remaining from a dolmen.

Pyramid shaped monument with a tall tale attached.

19th century tunnels burrowed under Liverpool.

The grand complex of buildings that comprise Liverpool's Exchange Flags includes a vast World War II bunker that has been frozen in time.

The red letters in the literary pavement leading to the library form a mysterious code.