Sunday marks the 10th anniversary of the Sept. 11 attacks. The somber occasion will be commemorated in a variety of ways across the United States. Below are some of the biggest events scheduled and who will attend.
President Barack Obama will have a busy day, visiting Ground Zero in New York, the Pentagon, and Shanksville, Pennsylvania. He is also scheduled to attend an interfaith prayer service at Washington's National Cathedral; The city of New York's official site hosts a list of events taking place in the Big Apple. Among the most high-profile will be the opening of the Sept. 11 memorial at the site of the former World Trade Center in Manhattan.
On Sunday night, the National Geographic channel will air an interview with then-President George W. Bush. The interview will feature both personal insights from Bush as well as archival footage from the chaotic and terrible day.
The memorial at the Pentagon will be closed most of Sunday for private visitation for surviviors and families of those killed in the attack on the nation's capital. According to The Wall Street Journal, "Defense Secretary Leon Panetta will deliver a speech at the memorial Sunday morning and President Barack Obama will lay a wreath on the memorial Sunday afternoon."
Near Shanksville, where United 93 crashed in an empty field, a new memorial will be opened Saturday. According to WTAE, "Every detail is designed to remember those who lost their lives, from the 17-ton boulder placed in the exact spot where the plane crashed, to the black concrete walkway shaped like wings, to the benches which mimic the metals of the plane." Former President Bill Clinton is scheduled to attend the memorial's dedication, as are Obama and Bush.
Yahoo! will be steaming the ceremonies live, starting at 8 a.m. ET.