Revellers participate in a colourful “flour war”, celebrating the “Ash Monday” or “Clean Monday”, a traditional festivity marking the end of the carnival season and the start of the 40-day Lent period until the Orthodox Easter, in the town of Galaxidi, Greece, on March 18, 2024. (Photo by Louisa Gouliamaki/Reuters)

A light pillar is a visual phenomenon created by the reflection of light from ice crystals with near horizontal parallel planar surfaces. The light can come from the Sun (usually at or low to the horizon) in which case the phenomenon is called a sun pillar or solar pillar. It can also come from the Moon or from terrestrial sources such as streetlights.

Picture dated June 18th, 2023 shows Cambridge University students on their way to the Emmanuel College May Ball in the rain. Hundreds of undergraduates dressed in lavish ball gowns, tuxedos, and even kilts, for the extravagant end-of-term party, which had the theme Where Lyrics Come To Life. The ball, which cost £110 a ticket, featured a rum bar, as well as a host of entertainment, including limbo, belly dancing, a bubbleologist, tarot reading and a magician. (Photo by Bav Media)

Creative imagery bronze winner. Make-up by Chengbo Sun, China. (Photo by BPOTY/Cover Images)

A girl walks in front of a graffiti painted on the wall of a house located inside the 15th-century complex built by Mameluk Sultan al-Ashraf Qaitbey, in Cairo's City of the Dead, Egypt February 13, 2017. (Photo by Amr Abdallah Dalsh/Reuters)

A large variety of weapons were for sale at the Washington County Fairgrounds Gun Show that drew thousands of people over the weekend, on March 22, 2013. (Photo by Gary Porter)

Rosanna Davison attends the “Lambertz Monday Night” at Alter Wartesaal on February 1, 2012 in Cologne, Germany. (Photo by Andreas Rentz/Getty Images)

A retired man (L) looks toward two girls wearing miniskirts, July 13, 1969 in Nice, France. (Photo by AFP Photo)