Snow covers roofs, streets and the Charles River following a winter blizzard in Boston, Massachusetts January 28, 2015. A powerful blizzard struck Boston and surrounding New England on Tuesday, leaving some 4.5 million people grappling with as much as three feet of snow and coastal flooding. (Photo by Brian Snyder/Reuters)

People walk through Manhattan in a snow storm on December 16, 2020 in New York City. New York City is expected to get between 10 inches and a foot of snow on Wednesday and Thursday in what is the first winter storm of the year. (Photo by Spencer Platt/Getty Images)

A man passes by a wall with graffiti in Beirut, Lebanon, on May 29, 2019. (Photo by Bilal Jawich/Xinhua News Agency/Alamy Live News)

A woman walks past a mural on a wall along a street in Singapore on February 17, 2021. (Photo by Roslan Rahman/AFP Photo)

Settled snow is seen covering houses and Cecil Peak on New Zealand's lower South Island on November 4, 2011 in Queenstown, New Zealand. The unseasonal weather is not expected to clear until tomorrow, with snow continuing to fall. (Photo by Teaukura Moetaua/Getty Images)

Iranian artist and designer Mehdi Ghadyanloo, with the help of the municipality, is slowly brightening up the city of Tehran one wall at a time. The 33-year old street artist has been painting murals and walls in Tehran for the last 5 years age, during which he’s reported to have painted over one hundred walls.

Fearless daredevils clamber up the worlds highest man-made climbing wall – running up the face of a 540ft dam. The Diga di Luzzone in Switzerland is considered by climbers as the Everest of wall climbing. (Photo by Ilana Marcus/Caters News)

Snow falls as a woman walks her dog in the village of Podolye, 70 kilometers (43 miles) east of St. Petersburg, Russia, early Thursday, May 11, 2017. North winds brought snow to the east of the St. Petersburg region. (Photo by Dmitri Lovetsky/AP Photo)