The National September 11 Memorial & Museum is nearly complete, with mangled steel removed from the World Trade Center towers on display, along with a staircase used by survivors to escape one of the towers.
A cavernous museum on hallowed ground is finally nearing completion, far below the earth where the twin towers once stood.
Amid the construction machinery and the dust, powerful artifacts of death and destruction have assumed their final resting places inside the National September 11 Memorial & Museum.
A vast space that travels down to the bedrock upon which the towers were built, the museum winds its way deeper and deeper underground, taking visitors on a journey to the very bottom.
Already on display are several pieces of mangled steel and metal recovered from the World Trade Center towers, each one telling a different story of the terror attacks that killed nearly 3,000 people.
The first relics that visitors will see are two massive pieces of structural steel that rose from the base of the North Tower. Now the rusty red columns soar above ground into the sunlit glass atrium that encloses the entrance to the museum.
"They're so large — about 70 feet tall — that we built the museum around them," explained Joseph Daniels, president of the memorial and museum.
Down a long ramp, visitors will peer down to glimpse the last piece of steel removed from ground zero in 2002, which sits inside a gaping silvery chamber that drops to the lowest level of the museum.
Further down the ramp, visitors will discover a mangled and twisted piece of steel that Daniels calls "impact steel." That's because this piece of the building was actually destroyed by the impact of Flight 11 slamming into the North Tower.