Googlers can play beach volleyball on campus. Other fun activities at Google include Foosball, videogames, pool tables, ping pong and roller hockey twice a week in the parking lot.
In a now famous founders' letter Larry Page and Sergey Brin distributed to prospective Google shareholders before the company's 2004 IPO: "Google is not a conventional company. We do not intend to become one." Mission accomplished.
Full list: 100 Best Companies to Work For