If you would go there now, and for the last two plus years, you’d see some work benches around the top of the right tower. It was slightly damaged during earthquake back in the August of 2011.
I was actually had some meetings in DC area when is happened, and was on the 24th floor of the office building. The shaking was very unnerving, the elevators were shut down and we had to go down the stairs, which was very slow and hot journey. As we were going down, it took probably at least 30 minutes, we learned that the earthquake epicenter was couple hundred miles away, and there was potential risk of the aftershock.
There were no aftershock, but man, as I was walking down, all kind of crazy thought were popping in my head.