This is a Stained Glass window made by L. Tiffany, and it is in the large interior courtyard of the Met Museum in NY. If you used the audio guide to the museum, it would probably take you a year to make it through the entire collection. The Tiffany windows found in this area are like paintings and they take your breath away.
There is a story told about Tiffany that he once made a fabulous window for a wealthy man. The man who commissioned the work looked at the window and said to the artist,"I wanted a swan in the lake". Allegedly Tiffany threw a rock through the window, breaking it. No idea if this urban legend is true.