The world’s busiest airport debuted an exhibit wall in tribute to civil rights icon U.S. Rep. John Lewis in the domestic terminal Monday. The $250,000 installation along a walkway between the domestic terminal atrium and the arrivals hall includes artifacts, videos and photos from the life of Lewis, a Freedom Rider who spoke at the 1963 March on Washington, was beaten by police during the 1965 march across the Edmund Pettus Bridge in Selma, and has been a Georgia congressman for more than 30 years.