Pocket Parks of NYC
The Atrium at Citigroup Center, located on Lexington Ave. by 53rd St, comes upon you suddenly. Located in an open space below street level, it's a nice respite in the middle of massive buildings dedicated to the gods of publishing. Indoors there are three stories of restaurants and shops making it a comfortable place to duck in on a rainy day. If you remain outside, you can listen to a gentle waterfall while sipping a cold drink.