[Greenhouse]
The greenhouse used to be pretty opulent, a pretty botanical garden. The building itself is round with a low cone top, and there are cracks and breaks in some of the dirty windows.
Inside, it's sort of like a wedding cake structure, with concentric circular tiers that once held different displays of plants. Now everything is mixed in and unkempt.
He won't see anyone inside, but there's that old crappy truck parked by the entrance...