This is a nice park in downtown manhattan overlooking the east river. I went this weekend and it was very empty! There's astroturf and benches and hydrangeas. Its all several stories above street level, wedged in between tall office buildings on three sides.
I used to work a block away from this little park and didn't know it was even there until I spotted it from across the East River on the Promenade. Such a great idea for the area (especially the east side downtown).