This landmark resort is home to a quite a few memorable pools. Among the Arizona Biltmore's smaller pools, there's the private Ocatilla pool which remains exclusive to the guests of the hotel's luxury Ocatilla suites. Then, of course, there's the Catalina pool, which, according to the hotel, was a favorite of Marilyn Monroe's. But our first choice? The Paradise Pool. This large oasis, originally built in 1930, is the centerpiece of the hotel's outdoor accommodations — and for good reason. The Paradise Pool offers a 92-foot waterslide, poolside bar, private cabanas, and stunning Frank Lloyd Wright-style architecture by Albert Chase McArthur. Whether you're looking to soak up some sun, watch an evening flick from the comfort of your inner tube, or simply take in a bit of Phoenix history, the Paradise Pool at the Arizona Biltmore is a preferred poolside retreat of Arizona natives.