This May 2, 2013 photo shows a mausoleum fashioned after a pyramid at Brooklyn's Green-Wood Cemetery in New York. The 478-acre site is celebrating its 175th anniversary this year and a special exhibition on Green-Wood is opening at the City Museum of New York.  While it cannot replace a visit to the cemetery grounds, it provides a historical context for one of only four U.S. cemeteries to be granted National Historic Landmark status. Photo: Mary Altaffer, AP / AP
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