Clinging stubbornly to what was once a peninsula jutting out from the Sussex coast, Pevensey Castle is an ancient site that was first fortified by the Romans in the 4th century.
Later, it became the landing place for William the Conqueror in September 1066.
In later years, the site was developed into a Norman castle with a square keep and gatehouse.
Incredibly, much of the original Roman structures - including its huge stone walls and D-shaped bastions - are still largely intact, and visitors can explore its battle-scarred fortifications.
You can even step inside the dark dungeons - if you dare - and scare yourself silly with ghostly tales of ‘the Pale Lady of Pevensey’.