A merry prince-archbishop built it to tease his guests: Hellbrunn — a stone table spraying its sitters, automated water theatres, hidden jets working 400 years on the same engineering: the tour where everyone laughs slightly soaked. You will get a little wet — summer makes it a feature, phones in inner pockets; the guided tour is mandatory for the fountains (successive slots) with palace and park free; the Sound of Music glass pavilion waits in its garden for the film's lovers.