People cross Flagstaff Hill as the snow starts to fall, in Schenley Park, on their way to the Carnegie Mellon University campus, Tuesday, March 20, 2018, in the Oakland section of Pittsburgh. Yet another powerful storm bore down on the Northeast on Tuesday, with wind-whipped snow falling in parts of Pennsylvania and New Jersey as people grumbled and complained about a first day of spring that looked an awful lot like the last weeks of winter. (Photo by Darrell Sapp/Pittsburgh Post-Gazette via AP Photo)

A man carries a dog and wades through a flooded street in Chennai, in the southern Indian state of Tamil Nadu, Wednesday, December 2, 2015. Weeks of torrential rains have forced the airport in the state capital Chennai to close and have cut off several roads and highways, leaving tens of thousands of people stranded in their homes, government officials said Wednesday. (Photo by AP Photo)

Mariam Emad from Parkour Egypt “PKE” practices her parkour skills around buildings on the outskirts of Cairo, Egypt on July 20, 2018. A group of Egyptian women gather at an abandoned park in a Cairo suburb once a week, climbing walls and jumping around in the strenuous physical discipline known as Parkour, while also challenging the country's conservative social norms. (Photo by Amr Abdallah Dalsh/Reuters)

In this photo taken on Thursday, September 6, 2018, a women releases an arrow during an archery competition during the Third Nomad Games, in Cholpon-Ata, 250 kilometers (156 miles) of Bishkek, Kyrgyzstan. The Central Asian nation of Kyrgyzstan held its biennial Nomad Games to promote and celebrate traditional sports of nomadic people. The week-long competition, which is held in a gorge near the picturesque Lake Issyk-Kul, feature traditional sports of nomad peoples such as horseback wrestling and goat polo. (Photo by Vladimir Voronin/AP Photo)

An artwork called “McJesus”, which was sculpted by Finnish artist Jani Leinonen and depicts a crucified Ronald McDonald, is seen on display as part of the Haifa museum's “Sacred Goods” exhibit, in Haifa, Israel, Monday, January 14, 2019. Hundreds of Christians calling for the sculpture's removal protested at the museum last week. (Photo by Oded Balilty/AP Photo)

Rebel fighters fire towards positions of regime forces in Ramussa on the southwestern edges of Syria's northern city of Aleppo on August 6, 2016. Syrian rebels said they have broken a three-week government siege of second city Aleppo, turning the tables on Russian-backed regime forces who are now on the defensive. (Photo by Fadi Al-Halabi/AFP Photo)

Burning Man 2013. The federal government issued a permit for 68,000 people from all over the world to gather at the sold out festival, which is celebrating its 27th year, to spend a week in the remote desert cut off from much of the outside world to experience art, music and the unique community that develops. (Photo by Neil Girling)

Shanghai-based artist Hong Yi, also known as Red, used 750 pair of socks to create a rather unusual sock portrait of famous Chinese film director Zhang Yimou. Yi, which is famous for her Coffee Stain Portrait, spent over three weeks on the project and used black, white and grey socks. (Photo by Ohiseered.com)