Children contain a dangerously high amount of energy, which, if not released, will lead to problems at school, or baseballs through the White House's windows. Play it safe with today’s Groupon: for $17, you get a five-visit open-play pass at The Monkey’s Treehouse (a $35 value), with locations in Brentwood and Nashville. Babies younger than 12 months and adults receive free admission with a paying child.

The 4,800-square-foot activity arena at The Monkey’s Treehouse, named Best Children's Play Program by Nashville Parent, dazzles pint-sized patrons up to eight years of age with a plethora of interactive and climbable activities. Once inside, tiny jaws drop at the sight of a four-room wooden tree house complete with bridges and slides. Toddlers then head to the pretend grocery store to run errands, cruise to the art area to express their creativity, and recline in the puppet theater to watch melodramas unfold. Visitors hop and jump through the felicity-inducing facility, discovering more activities such as a soft tumbling area, train tables, and model firehouse and post office.

The Treehouse's proprietors, who are parents of four young children themselves, work with trained staff to keep the jovial funhouse meticulously clean and safe. An area for grownups proffers seating, television, and wireless access for adults and youngsters cleverly disguised behind a copy of The Economist.