Sham Castle is a folly in Bathampton overlooking the
city of Bath, Somerset, England. It is a Grade II* listed building. It is a
screen wall with a central pointed arch flanked by two 3-storey circular
turrets, which extend sideways to a 2-storey square tower at each end of the
It was probably designed around 1755 by Sanderson
Miller and built in 1762 by Richard James, master mason for Ralph Allen,
"to improve the prospect" from Allen's town house in Bath.