Fodor's Expert Review Atomic Liquors

This Downtown bar is the oldest freestanding bar in Las Vegas (dating back to 1952) and owns the first liquor license in the state (literally, No. 00001). It takes its name from the custom of patrons in the 1950s, who would buy drinks, head to the roof, and watch atomic blasts in the desert in the distance. The Rat Pack and Barbra Streisand drank here. Fast-forward to now, and it's become the place to hang out, with 20 microbrews on tap and an inventive menu that specializes in fancy beer cocktails. There's even a restaurant next door. The bar is open until 2 am nightly.