Top Floor, Sunny Upper West Side One-Bedroom Duplex Co-op with Stunning City Views Nestled in a prime Upper West Side location, this one-bedroom duplex offers breathtaking views of the city skyline and the Jacqueline Kennedy Onassis Reservoir in Central Park. On a clear day, you can even spot the iconic Guggenheim Museum just past the reservoir. This picturesque view is visible from every room, w...