NATIONAL ATOMIC TESTING MUSEUM—
Photography and exhibits of post Cold-War era weaponry. “Area 51: Myth or Reality” reveals the myths of Groom Lake and allows you to make your own decision. $14; $20 with admission to the “Area 51” exhibit. M-Sa, 10 am-5 pm; Su, noon-5 pm. www. atomictestingmuseum.org. At the Desert Research Institute, 755 E. Flamingo Rd., 702.794.5124.