Pentagon memorial slated for dedication on seventh anniversary of attack . Memorial features benches engraved with names of victims over pool of lighted water . The Pentagon is the site where a hijacked plane crashed into the World Trade Center in New York City on September 11, 2001 killing nearly 3,000 people and injuring more than 6,000 others.
Pentagon memorial slated for dedication on seventh anniversary of attack . Memorial features benches engraved with names of victims over pool of lighted water . Relative says memorial helps her to heal .