FILE - In this April 4, 2012, file photo, Chicago Cubs players work out at Wrigley Field in Chicago, the day before their opening day baseball game against the Washington Nationals. Chicago’s Wrigley Field, New Orleans’ Saenger Theatre and a historic Los Angeles’ shipbuilding center have joined a list of sites being saved thanks to the efforts of historic preservationists in 2013. (AP Photo/Nam Y. Huh, File)