Las Vegas is the most populous city in the U.S. state of Nevada, the seat of Clark County, and an internationally renowned major resort city for gambling, shopping, fine dining, and entertainment.
Known for its opulent gambling casinos, this was where underworld figure Anthony Gallo became a millionaire and a force to be reckoned with in the gaming industry. 
Las Vegas, Nevada was the scene of a fight between Blockbuster and teen hero Eliza Harmon, aka, Impulse. Lex Luthor stripped Harmon of her super-speed powers at a critical moment during the fight and she was killed in action. 
Las Vegas, Nevada was one of several key cities that came under attack during the Sinestro Corps War. 
Earth-AD: In the continuity of "Kamandi, the Last Boy on Earth", Las Vegas, Nevada still existed, albeit in ruins. It was here that Kamandi fought the giant ape, Chaaku.