PHOTOS: Boston Marathon

<div class="meta image-caption"><div class="origin-logo origin-image none"><span>none</span></div><span class="caption-text">Runners queue up to board buses ahead of the 118th Boston Marathon Monday, April 21, 2014 in Boston. &#40;AP Photo&#47;Matt Rourke&#41;</span></div>
April 21, 2014 11:56:06 AM PDT