Nora Muaid stands in Zawraa Park on December 2, 2011 in Baghdad, Iraq. The park's 180-foot tall Ferris wheel opened earlier this year and is the second largest in the Middle East. (Photo by Mario Tama/Getty Images)

U.S. Army soldiers from the 2-82 Field Artillery, 3rd Brigade, 1st Cavalry Division, wait to load onto their armored vehicles as they prepare to convoy to Kuwait from Camp Adder in Iraq on December 7, 2011 at Camp Adder, near Nasiriyah, Iraq. (Photo by Joe Raedle/Getty Images)

Castro's soldiers at Playa de Giron, Cuba, after thwarting the ill-fated US backed 'Bay of Pigs' invasion. (Photo by Graf/Getty Images). April, 1961

Members of the Al-Baraa bin Malek batallion, part of the Free Syria Army's Al-Fatah brigade, duck to the ground as they pull a man (R) who was shot by a sniper twice in the Bustan al-Basha district of the northern city of Aleppo on October 20, 2012. (Photo by Javier Manzano/AFP Photo)

Wedges of an orange generate enough current and electrical juice – 3.5 volts – to power an LED. The fruit’s citric acid helps electrons flow from galvanized nails to copper wire in this 14-hour exposure. This image was published in September’s Visions of Earth, a trio of photos that appear in each issue of National Geographic. (Photo by Caleb Charland/National Geographic)

Paintings by Iris Grace, a 5 year old with an extraordinary talent to express herself through painting. She is Autistic and is only just starting to talk but is able to paint in a style far beyond her years. We wanted to share her art to raise awareness of her condition and inspire other families in similar situations to ours.

Participants from Newar community in traditional attire, takes part in the parade to celebrate Newari New Year that falls during the Tihar festival, also called Diwali, in Kathmandu, Nepal November 12, 2015. The Newar community observes the start of their Newari New Year 1136, in accordance with their lunar calendar, by worshipping their spiritual selves in a ritual known as "mahapuja". (Photo by Navesh Chitrakar/Reuters)

Young dancers perform at a preview show for the Chinese Lantern Festival which falls on February 6 and traditionally marks the end of the Lunar New Year celebrations on February 3, 2012 in Beijing, China.The Lantern Festival also known as the Yuanxiao Festival or Shangyuan Festival in China.(Photo by Lintao Zhang/Getty Images)