What was your last team building event? Your next, and why?

It’s not an event but a process to work on interpersonal relations…with intended benefits such as improved performance, alignment and reduced ambiguity within a TEAM.  You can google for the definitions…but the entire activity and should be "cycle", from planning, agreeing, participating and reflecting is all part of the experience.  Envision the problem-solving skill that is required to gain agreement on the activity alone i.e. there’s no “i” in team, the event that focus on results-based outcomes, simply promoting full engagement, or whatever the theme might be.  Feeling like you’re a member and helping to motivate each other is essential to driving downstream productivity – because feeling valued is second to none.
APA’s Psychologically Healthy Workplace Program – deemed most effective activity:

• Volunteering
• Physical Activities
• Field Trips
• Professional Development Activities
• Shared Meals

Considerations points: Its about problem-solving and communication, self-examination, underlying leadership (from facilitator or host), theme / goal hopefully with some analytics, and feedback

Constant improvement: The upshot is everyone learns differently and each take away will be based on personal experience and self-discovery.  Answering the question WHY during the entire process / activity will allow each person to get the most of the experience.  Oh, don't forget to celebrate!