This is the cloister surrounding the Amphitheater at Arlington National Cemetery. Three major services are held in the Amphitheater: at Easter (at sunrise), on Memorial Day, and on Veterans Day. The Amphitheater is built of marble from Vermont. More than 300,000 people are buried on the 200 acres of Arlington Cemetery, including veterans of wars from the Revolutionary War through the Afghanistan and Iraq conflicts. The most famous grave is that of President John F. Kennedy, on which burns an eternal flame.