The Smithsonian magazine is hosting their annual Museum Day on September 22nd where you can get FREE tickets to any of the participating museums. You can get 2 free tickets per email address, keep in mind most of these museums are first come first serve on the day of to keep from going over their max capacity so get there early. Sorry but this is for US residents only.
Some states have a ton of Museums so there are a lot of options to select from, Arizona for example has 34 museums offering tickets some of which are only open for those participating in Museum Day instead of anyone just walking in.
Click the link below for more info and find a museum(s) near you participating & Don't forget to Share this ...so others can have a chance to enjoy as well.
(This is not a promoted post I just love Museums and wanted to share)