I'm in NYC. We have Central Park and lots of Barnes & Nobles and Starbucks and stuff like that. If I could get the startup I have in mind going ... which I'm trying to do, just having difficulty finding available tech talent ... hint hint ... I'd have mandatory random blocks of individual "Go out and walk around Central Park for a few hours and distract your conscious mind while your subconscious mind calculates solutions" time and random blocks of group "Go out to Starbucks, get some fresh air and discuss projects outside the office for a change of pace." time.
Also weekly company movie viewings - either outings if something good is playing or good 'ol Netflix.
Our first movie would be Office Space, as a friendly reminder of why starting your own thing is the best thing to do in life.