![An underwater view is seen of the swimming pool at the Olympic Aquatics Centre in London February 17, 2012. [REUTERS/Eddie Keogh]
PHOTOS: Inside London’s Olympic venues](http://25.media.tumblr.com/tumblr_m6wcee572r1qmaoalo1_1280.jpg)
An underwater view is seen of the swimming pool at the Olympic Aquatics Centre in London February 17, 2012. [REUTERS/Eddie Keogh]
PHOTOS: Inside London’s Olympic venues
Runners are chased by zombies at the “Run for Your Lives” 5K obstacle course race in Amesbury, Massachusetts May 5, 2012. Runners face man-made and natural obstacles on the course, while being chased by zombies, who try to take “health” flags off the runners belts.
PHOTOS: The “Run for your Lives” obstacle race in Massachusetts
