Watch One World Trade Center Grow From 0 to 1,776 Feet in 2 Minutes

Today's Postcard comes from lower Manhattan, a place on many minds today, the 12th anniversary of the September 11 terrorist attacks.

One World Trade Center is a 1,776-foot tall skyscraper set to open on the ground once occupied by the Twin Towers in 2015. Designed by David Childs of SOM, the estimated $3.9 billion project will include a 65-foot high main lobby. Offices will start at the 20th floor; they will be interrupted by a "sky lobby" on the 64th with office space resuming from floors 65 to 90. An observation deck will be located on floors 100 through 102. Floors 91-99 as well as 103 and 104 (the building's top two floors) will be designated for mechanical space. Unlike original plans (and the Twin Towers), there will be no top floor restaurant.