Yes, i've added the perimeter because it was not present on the map. There is a terrace covered with a roof, not accessible by sidewalk. I've used a generic "building=yes" just in doubt. I like the new "building=pergola", but it seems not used a lot. Perhaps "building=roof" + "barrier=wall" will work better?

(also Falerna coastline in this changeset)

Purtroppo o per fortuna, questo parco eolico non è stato realizzato. Sarebbe il caso di correggere?

Non sarebbe il caso di rimuovere il tag "leisure=park" da questa way (www.openstreetmap.org/way/65751155) lasciando solo "boundary=national_park"?