Thirteen years after the twin towers of the World Trade Center were destroyed in the Sept. 11 terrorist attacks, the rebuilt One World Trade Center building opens its doors to workers.
The new structure cost $3.9 billion to build and, at 104 stories, is the tallest building in the United States.
Here are pictures of the scene at the center as its first new tenants begin moving in.
—By CNBC staff.
Posted Nov. 3, 2014.
The building stands near the site where terrorists crashed planes in to the twin World Trade Center towers in 2001.
This is the sign on the north facade of the building.
A woman uses her ID card to enter the building on Monday.
Workers in the ground floor lobby of the building.
The front desk in the lobby of the building, bearing the name of Condé Nast. The publishing company is a major tenant and began moving into the building on Monday.
Members of the media interviewed workers as they entered the building on Monday morning.
Now open, the building catches the eyes of a few pedestrians.