My next door neighbor has two beautiful rhododendrons. They purple flowers are lovely, and the bushes themselves are exceptionally tall - we actually had a landscape architect come by last year to talk to us about our front yard, and she said that they were the largest she'd ever seen! They are almost taking over his front yard. But when they make flowers like this, it's hard to want to cut them back!
I took these photos early in the morning so that the natural sunlight would fall across the flowers.