In this Saturday, May 10, 2014 photo, Bob Vogel, superintendent of National Mall and Memorial Parks, points out the location of a repaired crack on a scale model in a new exhibit inside the Washington Monument during a press preview prior to the re-opening of the monument, in Washington. With more than 150 cracks patched and repaired in its white marble, the Washington Monument is set to reopen for the first time since a 2011 earthquake caused widespread damage. (AP Photo/Molly Riley)