Girls enjoy nice weather at a park in front of the Pothonggang Department Store in central Pyongyang October 11, 2015. (Photo by Damir Sagolj/Reuters)

Girls during a class at the Teire Irish dance school in Moscow, Russia on March 15, 2019. (Photo by Sergei Karpukhin/TASS)

A girl flies a kite in the afternoon in Dhaka, Bangladesh on August 3, 2022. (Photo by Mohammad Ponir Hossain/Reuters)

A girl goes to school just before sunrise in Frankfurt, Germany, Wednesday, December 11, 2019. (Photo by Michael Probst/AP Photo)

A girl feeds a squirrel in Bolivar Square, in Caracas, Venezuela on June 4, 2024. (Photo by Gaby Oraa/Reuters)

In this picture taken on October 28, 2017, former Japanese p*rn star Mana Izumi checks her new tattoo at a tattoo studio in Tsurugashima, Saitama prefecture. Tattoos still provoke deep-rooted suspicion in Japan as the country prepares to host the 2020 Tokyo Olympics. People with body ink are refused entry to public swimming pools, bathing spots, beaches and often gyms, while visible body art can be harmful to job prospects. (Photo by Behrouz Mehri/AFP Photo)

Mates Jimi Hunt and Dan Drupstee dug the 650m slippery slide on a property at Helensville, northwest of Auckland and opened it this weekend as part of a festival to help combat depression.

Only with a pencil, ruler and protractor, without the help of a computer, Venezuelan artist Rafael Araujo creates complex fields of three dimensional space where butterflies come to life and shells rise from mathematical spirals.