Legoland Discovery Center

Phipps Plaza is home to this creative 35,000-square-foot space—one of only three so far in the U.S. The indoor playground features a free-play area, a 4-D cinema (where you feel weather effects like wind or rain), construction classes, and a highly detailed, interactive model of Atlanta made of nearly a million Lego bricks. Adults must be accompanied by children (except for adults-only evenings on second Thursdays) and vice versa.