Check out the new Mumbai Apartment complex The Aquaria Grande, with its Floating Balcony Pools. Designed by Hong Kong architect James Law, the plans for this incredible dream residence actually have swimming pools in the place of balconies.
"A tubular steel slide plummets through four storeys inside this penthouse apartment in New York by architect David Hotson." I like the slide idea, but I imagine going up would be much harder than coming down. unless you use the stairs, of course!