Photo Courtesy of Glenwood NYC originally posted on the Manhattan Living Blog THE 9/11 MEMORIAL is located at the site of the former World Trade Center complex, and occupies approximately half of the 16-acre site. The 9/11 Memorial features two enormous waterfalls and reflecting pools, each about an acre in size, set within the footprints of the original twin towers. The Memorial Plaza is one of the most eco-friendly plazas ever constructed. More than 400 trees are planned for the plaza, surrounding the Memorial's two massive reflecting pools. Its design conveys a spirit of hope and renewal, and creates a contemplative space separate from the usual sights and sounds of a bustling metropolis.