Dutch National Archives
Watch your step in Orlando, Fla., and 19 other cities named the most dangerous for pedestrians.
Transportation For America used pedestrian deaths from 2000 to 2009, the average pedestrian fatality rate and the number of people walking to work to create a pedestrian danger index and rank the most dangerous U.S. cities for pedestrians.
On the morning of April 19, 1995 Timothy McVeigh killed 168 people during the Oklahoma City bombing. Find out more about that tragedy here.