Arlington National Cemetery (USA). 'Soldiers from every war since the Revolution are buried in the 624-acre grounds. Simple white Headstones cover the green hills in a long endless procession. Many US leaders and notable civilians are also buried here. An eternal flame flickers over the grave of John F Kennedy.
Old Jewish Cemetery (Czech Republic). 'With 12,000 gravestones and some 100,000 bodies packed into a space the size of a few suburban gardens, Prague’s old Jewish Cemetery is like no other on earth.' http://www.lonelyplanet.com/czech-republic/prague/sights/dark/old-jewish-cemetery