Many U.S. leaders and members of the military are laid to rest in the largest national burial ground. It's a moving place to visit, especially during the changing of the guard at the Tomb of the Unknowns, which occurs daily mid-March to September every half-hour, October to mid-March every hour on the hour. An eternal flame marks the grave of U.S. President John F. Kennedy, one of the cemetery's most-visited sites. His grave is just below Robert E. Lee's Arlington House, from which there is a splendid view of Washington. The visitors center has maps showing where prominent figures are buried and sells tickets to the Tourmobile, which makes loops through the extensive grounds. Open daily October-March 8 am-5 pm; April-September 8 am-7 pm. Cemetery is free. Parking is US$1.25 per hour up to 3 hours, US$2 per hour after that. Located across the Memorial Bridge on the Virginia side of the Potomac (Metro: Arlington Cemetery), Arlington. Phone 703-607-8000. http://www.arlingtoncemetery.org.
