SAN FRANCISCO (AP) — More than a million people visit Alcatraz Island every year to see the shuttered prison sitting in the San Francisco Bay, made famous by Clint Eastwood in the movie about the great escape of three prisoners in the early 1960s. But these days, the prison, first opened to the public in October 1973, has been showing wear and tear, and some buildings needed new roofs, stabilizing and paint. After more than a year of work, the National Park Service on Wednesday pulled the tarps off upgrades at Alcatraz, showing off $3 million in improvements to the sally port, guardhouse, library, schoolhouse and other historic areas. "As we know, in this (guardhouse complex) things need to be seismically stabilized.Read more on NewsOK.com