We're taught that we should stay away from vices -- but they can be so fun! So if you feel like being up to no good, look through our slideshow of the best hotels for indulging the seven deadly sins. We dare you to check 'em out and never look back! Wet Republic is the party pool at the MGM Grand in Vegas. Bathing suit contests are regular occurences here, so if you feel like you're lookin' fine, strut your stuff on the runway!