National Building Museum

Built in 1882, this is an historic and awe-inspiring building. With free admission, it's a fabulous place to explore (especially for toddlers on the move!). The stairs were built with horse-use in mind, so they are easy for little legs to climb. There's ample space to run, super-tall columns to gasp at, and a building blocks free-for-all corner to inspire young minds. Savior to a rainy-day, house-bound kiddo.