Enthusiasts gather for the Model Rail Scotland exhibition on February 24, 2012 in Glasgow, Scotland. (Photo by Jeff J. Mitchell/Getty Images)

Uma Thurman visits 'Late Night with Jimmy Fallon' at Rockefeller Center on April 8, 2011 in New York City.

Pope Francis waves as he arrives at the Kangemi slums on the outskirts of Kenya's capital Nairobi, November 27, 2015. (Photo by Goran Tomasevic/Reuters)

Maj. Matt O'Donnell of Glenelg, MD shields himself from rotor wash as Ospreys carrying the delegation of U.S. Secretary of Defense Leon Panetta leaves on March 14, 2012 at Forward Operating Base Shukvani, Afghanistan. Panetta is also scheduled to meet with President Karzai during his two-day visit to Afghanistan. The trip comes as the Taliban has vowed revenge following this past weekend's killing spree by a U.S. soldier who is accused of killing 16 civilians in Afghanistan. Most of those killed were children and women. (Photo by Scott Olson/Getty Images)

Prince Philippe and Princess Letizia of Spain meet with Israeli president Shimon Peres at the presidential residence on April 11, 2011 in Jerusalem, Israel. The Spanish Royal couple is on their first official visit to Israel together. The Prince's parents, the King and Queen of Spain last visited in 1993.

A North Korean soldier looks through a window at Australian Prime Minister Julia Gillard (L) and her partner Tim Mathieson (C) while they visit the United Nations Command Military Armistice Commission (UNCMAC) meeting room at the border village of Panmunjom, between South and North Korea, on April 24, 2011 South Korea. Gillard will visit Japan, the Republic of Korea and China during a bilateral tour of North Asia from April 20-27. (Photo by Jeon Heon-Kyun-pool/Getty Images)

A worker prepares the “Cutter Head” of the Port Tunnel boring machine for attachment to the tunneling machine on September 1, 2011 in Miami, Florida. The $45 million machine is longer than a football field and about as tall as a four-story building and it will carve the twin tunnels connecting Watson Island and Dodge Island. The the new $1 billion Port of Miami tunnel is expected to be completed in May of 2014. (Photo by Joe Raedle/Getty Images)

Participants gather in the Union Square subway station during the annual No Pants Subway Ride on January 8, 2012 in New York City. The annual event is staged by the group Improv Everywhere which encourages people in dozens of cities worldwide to discard their pants while riding the subway. (Photo by Mario Tama/Getty Images)