Sometimes things don't go like you planned....and sometimes that's a pleasant surprise. About four years ago, I was still working at eBay. I had about 30 people on my team in marketing and every quarter we would schedule some type of team building event.
We had a lot of great team events, including the usual team building activities a lot of companies engage in (i.e. bowling, offsites) as well as what you'd expect a California company to do as well (i.e. wine tour, Segway tour) but frankly we'd run out of activities that we could get very excited about.