San Francisco mayor Edwin Lee, center, prepares to shovel soil onto freshly planted vegetation as he and Baltimore mayor Stephanie Rawlings-Blake, not pictured, help volunteers revitalize a vacant lot in Baltimore, Friday, April 26, 2013. Lee visited his counterpart in Baltimore to make good on a Super Bowl XLVII bet to take part in a day of service in the winning mayor's city. The Ravens beat the 49ers 34-31. (AP Photo/Patrick Semansky)
