How long did it take to build the memorial of 9 11?

The construction of the 9/11 Memorial and Museum in New York City began in 2006 and was officially opened to the public on September 11, 2011, marking the ten-year anniversary of the attacks. The overall process involved extensive planning, design, and construction phases, taking approximately five years from groundbreaking to completion. The memorial features two large reflecting pools set in the footprints of the original Twin Towers and honors the nearly 3,000 victims of the attacks.