The Folly Arch, Hawkshead Lane, Brookman's Park, North Mymms, Hertfordshire

This sham medieval arch is all that remains of the buildings of the Gobions estate. It was built in circa 1740 for Sir Jeremy Sambrooke, the estate owner. The Folly Arch is a Grade II* listed building.

List Entry Number 1100984.
Historic England Archive AA98/04986.