Dallas, the 3rd-most populous city in the U.S. state of Texas, is home to 262 high-rises, 28 of which stand taller than 400 feet (122 m). The tallest building in the city is the 72-story Bank of America Plaza, which rises 921 feet (281 m) in Downtown Dallas and was completed in 1985. The skyscraper, one of the first in the United States to receive the Energy Star Award for efficiency, also stands as the 3rd-tallest building in Texas and the 22nd-tallest building in the nation. The second-tallest building in Dallas is the Renaissance Tower, which rises 56 floors and 886 feet (270 m). Overall, of the ten tallest buildings in Texas, three are located in Dallas; the other seven are all in Houston.