The Coolest Pools
From celebrity pools to rooftop wonders, see amazing, over-the-top pool designs from HGTV's Cool Pools .
Randolph Hearst Castle's Pool 02:36
Million Dollar Backyard Quarry Swimming Pool 03:03
A Massachusetts swimming pool was built in a former limestone quarry in a couple's backyard. The pool's lining is natural rock and includes a sixteen foot waterfall.