Scottsdale Arizona boasts the largest butterfly atrium in the United States. My boyfriend recently moved there and we saw it off the side of the freeway while driving one day. We decided to check it out on a Sunday afternoon. We were probably the oldest people there (without kids) but hey, I wasn’t complaining! There were thousands of butterflies and moths from all around the world which made for some awesome photos! I had a great time.. even though it felt like a humid oven!