WASHINGTON, DC.- Everybody loves a freebie and this Saturday, September 25, marks Smithsonian magazine’s 6th Annual Museum Day, when more than 1,500 museum and cultural venues across the United States will honor Smithsonian.com’s special get-in-free ticket for two. All you have to do is .search the map for participating museums in your area and download the free ticket here. Participating in the annual event are more than 90 museums and educational organizations who have partnered with the Smithsonian Institution in a unique collaboration that makes Smithsonian artifacts and expertise more widely available. “If you can’t come to the Smithsonian,” says the program’s director Harold Closter, “we are determined to bring it to you.” More than 8,000 artifacts, scie