2. Understanding, Martin Creed (2016)

Martin Creed has become one of Britain’s most well known artists due to his playful, and occasionally provocative pieces.

In 2016, Creed constructed a large billboard in Brooklyn Bridge Park, but unlike the billboards of Times Square, his piece contained the singular word of “understanding,” as opposed to selling a product.

The 10-foot tall letters stretched across a 50-foot long steel beam that rotated 360 degrees. Creed designed a computerized program that would determine the speed and rhythm of the sign’s rotation, constantly changing the perspective on the piece.

Understanding was available between May 4 and October 23 of 2016.