The US Bank Tower, known locally as the Library Tower and formerly as the First Interstate Bank World Center, is a 310-meter skyscraper located in Downtown Los Angeles. The US Bank Tower was formerly the tallest building in Los Angeles and California. It is the only building in California whose roof heights exceed 1,000 feet. It was also one of the original targets of the original plans of September 11. It was also meant to survive a 7.5 earthquake on the Richter Scale. But how long can the tower last without maintenance?
1 day after people: The power grid fails, and the tower goes dark for good.
10 Years after People: With no humans to fight southern California's frequent wildfires, one of the wildfires advances into L.A. and guts the interior of the US Bank Tower, along with all of the other L.A. skyscrapers.
50 Years after People: The US Bank Tower was built to withstand earthquakes, but fire damage and 50 years of neglect have weakened the building. Finally, the Big One, an earthquake measuring 8.0 on the Richter scale, strikes Los Angeles. The earthquake causes part of the skyscraper's top floors, like the crown and the sign, to slough off and fall from the building. However unlike Los Angeles City Hall, or the Hollywood Sign, the US Bank Tower survives the quake.
600 Years after People: The US Bank Tower is still standing even after most other skyscrapers have fallen. The building owes its longevity to being constructed with a central core of concrete. If the US Bank Tower were located in a colder climate its central core of concrete would have been damaged from freeze-thaw cycles, but those do not occur in Los Angeles. Finally, a moderate earthquake collapses the US Bank Tower.
The tower while still intact:
The tower's destruction: