"Open since May 2014, the National September 11 Memorial & Museum preserves some 60,000 artifacts—physical evidence, first-person testimonies, and historic records—from the 2001 and 1993 attacks, including archaeological remnants like the 'Survivors' Stairs' and the 'Last Column'; after the museum, the outdoor memorial with the names of every victim inscribed on the reflecting pools is free and open to the public." - Lauren Dana Ellman Lauren Dana Ellman Lauren Dana Ellman is a New York-based writer and editor who specializes in travel, lifestyle, food, and shopping content. Travel + Leisure Editorial Guidelines