Hi, thanks for adding this. It has already been mapped, but unfortunately does not render on the standard OSM Carto map tiles.

I have deleted the POI you added as a duplicate and added the tag tourism=attraction to the existing object, which may help.

Not being rendered on the map is not a problem shared with hedge mazes, as we can map the hedges in addition to the bounding polygon and the hedges are rendered.

https://www.openstreetmap.org/way/393397210

https://wiki.openstreetmap.org/wiki/Mazes