On Sept. 11, 2001, the twin towers of the World Trade Center burn and later collapse after hijacked planes deliberately crashed into them in New York City. A multimillion-dollar reward was offered for now-dead terrorist Osama bin Laden after the attacks.
** FILE ** In this Sunday, Sept. 22, 2013, photo, One World Trade Center, a skyscraper built at the site of the 9/11 attacks on the World Trade Center is seen in New York. Soaring above the city at 1,776 feet, 104-story One World Trade Center, is America's tallest building and includes office space, an observation deck and restaurants. It is expected to be open in 2014. (AP Photo/Lefteris Pitarakis)