Houston was destroyed by a cluster of miniature nuclear devices of Iranian design placed in the Sky Lobby of the Chase Tower built by the Saudi billionaire Khalid bin Mahfouz.  Note: The JPMorgan Chase Tower, formerly Texas Commerce Tower, is a 305.41 m (1,002.0 ft), 75-story skyscraper at 600 Travis Street in Downtown Houston, Texas. It is currently the tallest building in the city, the tallest building in Texas, the tallest five-sided building in the world, the 13th tallest building in the United States, and the 79th tallest building in the world.  The building was developed as part of a partnership between Texas Commerce Bank and Khalid bin Mahfouz.