A. New York has 216 existing and under construction buildings at least 492 feet , Chicago has 114, Miami has 32, Houston has 31, Los Angeles has 26, San Francisco has 21, Dallas has 20, Atlanta has 19, Boston has 19, Seattle has 18, Las Vegas has 16, Philadelphia has 15, Minneapolis has 11, Pittsburgh has 10, Jersey City has 9, Detroit has 8, Denver has 8.