From the outside, the 130,000-square-foot Lego House looks like a large-scale version of a kid’s creation. Inside, visitors can explore everything the classic toys can do. The experience begins at the Tree of Creativity, which was crafted using more than 6 million bricks. It’s one of the largest Lego structures ever built. At the 6 Bricks Factory, guests collect a pack of a half dozen Legos that were made on-site. Each set shows visitors one of the more than 915 million possible ways those six bricks can be combined. —Constance Gibbs