When the hijacked planes hit the World Trade Center on September 11 in 2001, the final phone calls from passengers on board were messages of love. 20 years on, we remember them. 💔 | News.com.au

Foundation Hall is a room of massive scale with ceilings ranging from 40 to 60 feet. Here is the Last Column, covered with mementos, memorial inscriptions, and missing posters placed there by rescue and recovery workers. http://911memorial.io/1pwxM9Z | National September 11 Memorial & Museum