Ha-Ha.

The trench at the front of the picture is a Ha-Ha. It’s such a brilliant idea- so simple and incredibly effective.

I stopped off at Littlecote House after work. Unfortunately, you can only walk around the exterior gardens from the road as they are only allowing residents to walk in the enclosed gardens.

https://en.m.wikipedia.org/wiki/Littlecote_House

https://en.m.wikipedia.org/wiki/Ha-ha