Teaching Children About Memorial Day FHE Lesson | My Heart & Home ...the gravestone at Arlington Cemetery are decorated with U.S. flags. Flags are flown everywhere, many parades, visiting cemeteries/memorials of service men & women, placing flags on their graves. The White House flag is raised to top of staff, solemnly lowered to half staff until noon, then raised to full staff for the rest of the day. On a lighter note, also the unofficial start of summer. Labor Day being the end of summer.