New York City (painting)
There is an unfinished version of the work, called New York City I. It has strips of paper tape, which the artist could re-arrange to try what different designs would look like. The unifinished version is shown at theKunstsammlung Nordrhein-Westfalen in Düsseldorf, Germany.  In 2022, people discovered that the artwork had been hanging upside down for years. To avoid damaging the painting, its orientation was not changed.