You don't have to be of strong faith to enjoy the peaceful atmosphere of St. Martin Cathedral. Check when the next mass starts or when it's open for general viewing.
Wandering around this principal church won't cost you a dime, which is welcome news if you're watching your budget. You'll find St. Martin Cathedral in Stow Bedon. There are plenty more places to experience nearby, including Richmond Park Golf Club, Watton Clock Tower and Wayland Wood.