People tend to check in during these times:
The nation's largest Latino museum and first formal Smithsonian affiliate.
Focuses on the Latino experience in the US. Your second foursquare check in will earn you a free museum t-shirt.
Free admission on Tuesdays!
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.
It's pretty boring. I don't know how this museum is Smithsonian affiliated.