The iconic photo by Ormond Gigli, Girls in the Windows, from 1960.
The shot was took place in the window frames of brownstones slated for demolition located across the street from the Gigli's studio on 58th St. The women are a mix of celebrities and models and friends of the the photographer's. The shot was carefully planned and quickly assembled, as it was required to take place during the construction workers' lunch break.
Read more on Ormond Gigli's website.
Below is a detail of the photo.