de Lille The city of Las Vegas, Nevada and its surrounding unincorporated communities in the Las Vegas Valley are the sites of more than 160 high-rises, 42 of which stand taller than 400 feet (122 m). The tallest structure in the city is the Stratosphere Tower, which rises 1,149 feet (350 m) just north of the Las Vegas Strip. The tower is also the tallest observation tower in the United States. Le français aujourdhui Académie française Banque des Territoires La Banque de l'Intérêt Général Chambre D'agriculture - alsace Houston, the largest city in the.S. State of Texas, is the site of 48 completed high-rises over 427 feet (130 m 36 of which stand taller than 492 feet (150 m). The tallest building in the city is the JPMorgan Chase Tower, which rises 1,002 feet (305 m) in Downtown Houston and was completed in 1982. It also stands as the tallest building in Texas and the 16th-tallest building in the United.