One World Trade Center, left, is reflected in the glass facade of its neighbor, 4 World Trade Center. (Mark Lennihan / AP)
First Building To Open At 16-Acre Site
A man looks out a window at One World Trade Center. (JUSTIN LANE / EPA)
Four World Trade Center, center, stands near its more famous neighbor, One World Trade Center, left. (Mark Lennihan / AP)
The lobby of 4 World Trade Center. (Stan Honda / AFP/ Getty Images)
