Montreal-based design firm SWON does wonderful work with glass and light, blurring the boundary between art and outdoor design. Check them out, they are definitely worth a look!
Cascade is a waterfall-inspired glass wall overlooking a landscaped garden in Toronto, Canada, close to Lake Ontario. This is a 10-ft long, 7-ft high glass installation of 77 glass blocks. It's amazing how they're incorporated into a real waterfall, so the water can flow freely over the glass.