An undefeated English castle in South Wales: Haverfordwest withstood 300 years of attacks by Welsh tribes
Kew Asylum: constructed to solve the overcrowding problem, it soon became jam-packed
The remains of Buchanan Castle in Scotland: In 1941 Rudolf Hess was held here as a prisoner of war
Eddystone Lighthouse and its battle to oversee the treacherous Eddystone Rocks
Brean Down Fort in England: one of the Palmerston’s forts, which never saw action
Watkin’s Tower: Only stage one of Watkin’s over ambitious tower project was completed before funds dried up
