Fourth Sunday in October Halloween There is no official celebration, but costumed revelers are on the increase every year. Giant block parties take place in the DuPont Circle area and Georgetown. Check the Washington Post for special parties and activities. The nation's war dead are honored with a wreath-laying ceremony at 11am at the Tomb of the Unknowns in Arlington National Cemetery followed by a memorial service. The president of the United States or a very high-ranking government official emcees.
Military music is provided by a military band.
The president lights the national Christmas tree to the accompaniment or orchestral and choral music. On three evenings after Christmas from 5 to 7pm, visitors can see the president's Christmas holiday decorations by candle-light. String music enhances the tours.