The U.S. Bank Tower is trying to get approval for both an observation deck and restaurant, leaving many asking: why didn't it have those things from the start?
A recent LA Times article announcing this tells us that half of the space wasn't even being used.
L.A.'s tallest skyscraper to get observation deck
This viewpoint will only be the tallest you might be able to see all of LA from until the Grand Wilshire finishes in 2017. Hopefully, the design call for some sort of veiwng are from one of its top floors and a restaurant up high. Last time, we checked it will just have a dining area at street level.