The artist, Antony Gormley, created these naked figures, 31 in all, in his own image. Some are ground-level according to this article. The purpose of this art project called "Event Horizon" is to have people become aware of their environment.
If you happen to be in New York City between now and August 15th of this year, look up, and let me know what you think. Here is a map to find all 31.