Historic school built in 1693. I would recommend walking around the old portion of the campus, which starts at Merchant's Square and goes back to the Sunken Gardens. You can almost always walk through the Wren building main front or main back door where there is some facts and a brief history of the school.
The artist abandoned the project meaning it's no longer maintained and slowly chipping. Technically closed, but everyone ignores the lock on the gate- hop the cattle guard gate and go to your left up a hill to foamhenge. It was a fun roadside attraction despite its aging it's just so weird! You can park right by the gate.