The Best Sight in Seattle, Washington

This 22,00-square-foot "museum" is a big play area divided into themed sections—there's a mountain to climb, a toy train track, a puppet theater, a craft workshop full of art supplies. The basic idea is to give kids an engaging setting and let their imaginations have free reign. The museum's stated target age group is 10 and under, but it's aimed primarily at the younger end of that range.