Little things I didn't know about the 9/11 Memorial site

The tree that survived everything
(PHOTO CREDIT: digitalamber.net)

• The bronze bearing the names of victims is cooled to 78 degrees during the summer. This makes the names cool to the touch. 
• The bronze is also heated in winter. 
• The water in the falling will be heated in the winter so that it continue to flow. It is, BTW, chlorinated. 
• There is a single tree that survived the fall of both towers, the search and recovery and the construction of the memorial (see photo)
• The phrase "and her unborn child" appears following the names of at least four female 9/11 victims. This phrase is not searchable on the 9/11 memorial site. 
• The victims' names are etched through the bronze so that light may shine from underneath, illuminating each name into the night sky.