Outdoor Exercise in NYC

There are various outdoor parks in NYC with "bars" for exercise similar to whats in your picture. Along the East River, there is a long path for running (from 23rd street down to Wall Street) with a public racing track and an area with various bars for exercise. Here's a list of others in the city:

http://www.nycgovparks.org/facilities/fitnessequipment

You may also want to look at this outdoor fitness calendar provided by the city. I saw some tai chi and yoga in there.

http://www.nycgovparks.org/events/outdoor-fitness