This old gate isn't actually in the middle of the countryside, but in a school playing field just down the road from where I live in Beeston.
The roundhouse isn't actually a house, but it round. It's a large wooden shelter where the children can sit in the fresh air, but stay dry.
When I visited it, some musicians were playing, as the school had opened its doors for the day for a community event that takes place once a year. There are various health & education stalls, food tasting games to play and workshops, like this Indian drum one.