Activists from the People for the Ethical Treatment of Animals (PETA) demonstrate with slogans in protest of the designers use of fur, during the Paris Fashion Week, in front of the Eiffel Tower, in Paris, France, September 25, 2018. Placards read: “For a Fashion Week without fur”. (Photo by Benoit Tessier/Reuters)

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.

The Messner Mountain Museum (MMM) Corones, designed by the renowned Iraqi-British architect Zaha Hadid, is the final instalment in a series of six mountain-top museums curated by Reinhold Messner, the Italian mountaineer known for making the first ascent of Mount Everest without supplemental oxygen.

Lazar and his sister Andjelka sit by a candle in their home in the eastern Serbian town of Majdanpek, December 4, 2014. Electricity workers in Serbia struggled through snow, ice and treacherous terrain on Thursday to restore electricity to an eastern town left shivering without power, heating or running water for a fourth day. (Photo by Marko Djurica/Reuters)

A sewer cleaner of Dhaka City Corporation cleaning out the city's sewers on May 03, 2017 in Dhaka, Bangladesh. Despite a rise in the number of deaths of manhole workers every year, workers regularly go into the manholes without any protective gear. (Photo by Zakir Chowdhury/Barcroft Images)