Wreaths Across America was started in 1992 at Arlington National Cemetery by Maine businessman Morrill Worcester and has expanded to hundreds of veterans' cemeteries and other locations in all 50 states and beyond.

Jose Luis Magana / AP
Police officer Terry Fitzgerald of Portland, Maine, carries wreaths as he helps lay holiday wreaths at graves at Arlington National Cemetery in Arlington, Va., Dec. 15, during Wreaths Across America Day.