I've been the Jupiter twice and enjoyed both times. I'd known about Goldsworthy and he's why I went in the first place but have gained appreciation for others like Jencks etc.
The Garden of Cosmic Speculation, had me at its name. I'll be going along there to. Cheers, pal. Thank you very much.
Little Sparta is on another level though - the whole place is a work of art.
I'm also keen to go to the Garden of Cosmic Speculation - but it's not open very often:
http://en.wikipedia.org/wiki/Garden_of_Cosmic_Speculation