Roosevelt Island can be seen in this aerial photo down by the lower left corner of the photo. This photo looks at NYC from the North looking South.
When you look at a photo like this and can see the topography of the area and the East River you just wonder how Roosevelt Island ever came to be and why the East River as an estuary formed as it did.
The full photo of this view was taken Lazarus6 and can be viewed on Flickr HERE. It is worth linking through to read the location info provided by the photographer if you are unfamiliar with the area.