Aerial view of a boat working in the green water of Taihu Lake covered by blue-green algae, Wuxi city, Jiangsu province, China on May 23, 2018. (Photo by Imaginechina/Rex Features/Shutterstock)

“Honorable Mention”. An Indian rhinoceros, far from home and stuck inside with late-winter blues at the Toronto zoo. Photo location: Toronto, Ontario, Canada. (Photo and caption by Stephen De Lisle/National Geographic Photo Contest)

Alee Harrison, 13, wears the tv series “Doctor Who” on her legs as she works on a painting for Operation Blue Pride. (Photo by Greg Lovett/The Palm Beach Post)

A woman takes a picture as a super moon, known as the Blue Moon, rises above Ciudad Juarez, Mexico on August 30, 2023. (Photo by Jose Luis Gonzalez/Reuters)

Nathan Sawaya is a New York-based artist who creates awe-inspiring works of art out of some of the most unlikely things. His recent global museum exhibitions feature large-scale sculptures using only toy building blocks. LEGO bricks to be exact. Photo: “Blue man sits in chair”. (Photo by Nathan Sawaya/The Art of the Brick)

Pashtan Wagner, a Blue Oriental Cat participates in the GCCF Supreme Cat Show at National Exhibition Centre on October 28, 2017 in Birmingham, England. (Photo by Shirlaine Forrest/WireImage)

Pope Francis looks at an acrobat of the “Black Blues Brothers” performing during his weekly general audience in St. Peter's Square at The Vatican, Wednesday, Nov. 30, 2022. (Photo by Andrew Medichini/AP Photo)

Brazilian model Adriana Lima continues her vacation in Marbella, Spain on July 29, 2019. Dressed in a short blue jumpsuit. (Photo by The Mega Agency)