Senator Barack Obama (D-IL) (R) stands in front of Senator Hillary Clinton (D-NY) as they arrive for U.S. President George W. Bush's annual State of the Union speech to a joint session of Congress at the U.S. Capitol in Washington in this January 23, 2007 file photo. Hillary Clinton announced her second run for the presidency on April 12, 2015 starting her campaign as the Democrats' best hope of fending off a crowded field of lesser-known Republican rivals and retaining the White House. (Photo by Larry Downing/Reuters)

The phenomenon of the Hill of Crosses in northern Lithuania began when people started leaving crosses there hundreds of years ago – and continues to this day. These photos of a hill covered in crosses show the amazing sight it has become. Photo: In 1831 an unsuccessful uprising against the Russian czar left many rebels dead. Relatives of the dead rebels, with no bodies to bury, instead left crosses, according to the Daily Mail. (Photo by Richard Gardner/Rex USA)

“I'm Josh Fancher, a 21 year old with an avid interest in photography, including macro, nature and wildlife, night photography, landscapes, cityscapes and architectural photography. Inspired by the beautiful and amazing water drop photography of Martin Waugh, I started doing water drop collisions in December of 2007. I use a 105mm Micro Nikkor lens for water drops, along with a pair of Nikon SB 600 flashes. I recently got a StopShot system (Nov 2009), which makes timing a lot easier. Before then, timing was manual, with an eye dropper, eye-hand coordination, and a lot of patience” – Josh Fancher. (Photo by Josh Fancher)

“The Greek Civil War was fought from 1945 to 1949 between the Greek governmental army, backed by the United Kingdom and United States, and the Democratic Army of Greece (ΔΣΕ) (Greek initials DSE), the military branch of the Greek Communist Party (KKE), backed by Bulgaria, Yugoslavia and Albania. It was the result of a highly polarized struggle between leftists and rightists which started in 1943 and targeted the power vacuum that the German-Italian occupation during World War II had created. One of the first conflicts of the Cold War, according to some analysts it represents the first example of a postwar Western interference in the internal politics of a foreign country, and for others, marked the first serious test of the theory of the so-called Churchill-Stalin percentages agreement. The first signs of the civil war occurred in 1942–1944, during the Occupation”. – Wikipedia

Photo: A Greek commando soldier, wearing a fur-collared jacket supplied by the Americans, waits for a guerrilla target to emerge during the Greek Civil War. (Photo by Bert Hardy/Picture Post/Getty Images). 22nd May 1948

“Body blading (also known as buggy rollin') is an extreme sport that involves descending down a slope while wearing a flexible aerodynamic plastic roller suit that has wheels on the feet, knees, torso, and arms. This suit was created by Jean-Yves Blondeau, and he is one of the premier body bladers. Body blading is similar to roller blading, and in fact a body blader often starts out using the rollers on their feet in the same fashion as roller blades in order to gain initial speed, but then the rider generally assumes a position laying on the stomach facing down the hill. A body blader is capable of reaching very high speeds. Maneuverability is achieved by moving the body into various positions to change direction”. – Wikipedia

Photo: French designer Jean-Yves Blondeau demonstrates his “Buggy Rollin” suit during a performance on August 16, 2007 in Beijing, China. Blondeau is able to roll along in any position and can achieve high speeds wearing the suit. (Photo by China Photos/Getty Images)

Though schools around the globe have different start dates, calendars and traditions, the first day of a new term is an exciting time filled with the prospects of gaining more knowledge, making new friends and building community. Here: Schoolchildren attend their first lesson on Knowledge Day in the town of Turov, Zhytkavichy District, Gomel Region, Belarus on September 1, 2017. Knowledge Day marks the beginning of a new school year in Belarus and is celebrated on September 1. (Photo by Viktor Drachev/TASS via Getty Images)

A supporter of the presidential candidate for the Honduran Opposition Alliance Against the Dictatorship for the past election, Salvador Nasralla, lies on the street in front of police officers during a demonstration against the contested re-election of President Juan Orlando Hernandez, in Tegucigalpa, Honduras on January 21, 2018. (Photo by Orlando Sierra/AFP Photo)