This map from the National Weather Service in Norman, Oklahoma (via Atlantic Cities) shows the destructive path of the Moore, Oklahoma tornado of 20 May 2013. This is a preliminary map that also shows the track of a 3 May 1999 tornado that followed a very similar path.
There's too much graphic, devastating imagery from the scene which I won't include here. Dr Jeff Masters has an excellent overview of the meteorology of the event, including accounts of debris being thrown 100 miles in the air to land on Tulsa, Oklahoma.
UPDATE: The National Environmental Visualization Laboratory has this image of radar rotational velocity across the storms of that day, showing tornadic activity in darker colors. (Credit: NOAA)
UPDATE: The Google Crisis Map for 2013 Oklahoma tornadoes includes a track of the tornado plus shelter information and links to other local resources. I've included a snapshot from Tuesday evening, May 21, 2013.
UPDATE: A second National Weather Service map shows the detail of where the tornado was at its maximum intensity. (Credit: National Weather Service, Norman OK, via Facebook)
UPDATE: The New York Times has a detailed tornado track map for the Moore, Oklahoma tornado. I've excerpted a piece of it here by way of illustration. Their article also has before and after aerial photos of the damage.