Every Smithsonian in DC! PLUS the Zoo and gardens! Best! (all the different ones)

Ever wonder: What's in each Smithsonian? How many different Smithsonians are there? I spent 1 week in DC and went to every single Smithsonian museum, gallery and building in Washington, DC. I saw each garden and spent a day at the zoo, too! Here's a brief, quick overview of the Smithsonian Institute including: the Castle, the Natural History Museum, American Art Museum, National Portrait Gallery, Renwick Gallery, American History Museum, American Indian Museum, Air and Space Museum, Hirshhorn Museum, Sackler Gallery, African Art Museum, Acostia Community Museum, Museum of African American History and Culture Museum Link to my week in DC: (white house, capitol, and more):    • 7 days in DC! All the best things to see i...   Link to the Monuments and Memorials video:    • The memorials and monuments of DC