Roses placed by the mother of an architect who died during the Sept. 11, 2001 terrorists attacks are erected off his name on the edge of the South Pool at the site of the World Trade Center in New York, Friday, Sept. 25, 2015. Pope Francis is expected to visit the 9/11 memorial as part of his five-day trip to the United States. (AP Photo/Julio Cortez, Pool), APTOPIX