Tomorrow marks a somber anniversary, seven years since the attacks of September 11th, 2001. Nearly 3,000 people from 90 different countries were killed that day, in New York City, at the Pentagon in Virginia, and near Shanksville, Pennsylvania. While the damaged Pentagon has been rebuilt, plans are still underway for a memorial in Pennsylvania, and construction has only recently gotten underway on the memorial at Ground Zero, the former site of the World Trade Center in New York City. On that same site, the new Freedom Tower has been under construction since 2006, and will hopefully be completed by 2012, reaching 1,776 feet above Manhattan’s skyline. Here is a brief look back, several views from today, and a peek into the future of these sites.