National Building Museum

Building with Legos and playing with bulldozer toys at The National Building Museum can be a nice way to spend a rainy day, or any day.

According to the Washington Post:
"Designed for visitors between the ages of two and six, the exhibition offers kids a chance to learn about architecture, construction and design through play. Legos and building blocks are available, as are bulldozers and toy trucks. Visitors can try on hard hats and tool belts and flip through picture books on building."