8. William Vale Pool & Terrace. Photo via The William Vale.
At the new William Vale hotel, located in the heart of Williamsburg, you'll find the breathtaking Vale Pool—tree lined and raised high above street level on the third floor, its claim to fame is as 'the longest hotel pool in NYC.' Laps, anyone? But aside from just taking a dip, having a workout, or relaxing in the shallows, the pool and its adjoining deck space is also available for use for receptions, cocktail parties, or whatever else suits your fancy.