They say that you can't see all of Versailles in one day. Absolutely true. The place is a monument to excess. The line just to get in is huge -on a busy day, about an hour of standing on a cobblestoned plain. Crowd control is poor, amenities nonexistent. No benches, no shade, no vendors, no toilets. And precious few inside,either. The building is magnificent, but my feeling is: if you've seen three huge halls and one huge chapel, you've seen them all.
Though I admit that the gate attendant was surprised when I left before trying to slog all the way through.