There used to be nine but Pluto has gone so now there are eight. Wotton (Bucks) had three : Jupiter, Mars and Neptune (all statues). Many places of course had a Temple of Venus.
Does anyone know if any Garden worldwide was deliberately designed as a Planet Garden containing 9 (or 8 if more modern)garden ornaments/buildings named after the planets ?
If not then I’d like to suggest this innovative idea to a budding landscape designer.