A design remembering 9/11 in 2021, 20 years after the terrorist attack. The background photo of the "Tribute of Light" was taken by Jeffrey Marshall in September 2021. The design is contained within a pentagon as a nod to the Pentagon in Arlington, VA and there are four triangles within the pentagon corners, representing the four flights that were hijacked, with one being left unfilled recognizing Flight 93 where passengers were able to divert the plane from its intended target.