People tend to check in during these times:
The nation's largest Latino museum and first formal Smithsonian affiliate.
It would be nice to have a Spanish translation for the exhibits. Some visitors only spoke Spanish and didn't understand some items that were from San Antonio.
Focuses on the Latino experience in the US. Your second foursquare check in will earn you a free museum t-shirt.
It's pretty boring. I don't know how this museum is Smithsonian affiliated.
Free admission on Tuesdays!