Alternative tour of Severndroog Castle (online only)
Castle Wood, Shooters Hill, Greenwich, SE18 3RT
Nearest train: Falconwood, Eltham
Bus routes: B16, 89, 122, 161, 244, 486
Grade II* listed triangular brick Georgian tower sited in Oxleas Woods. Standing 63ft tall, it offers spectacular panoramic views across the capital. It was built in 1784 by Lady Anne James in memory of her husband Sir William James.