A mother prays for success for her child in the college entrance examinations at a Buddhist temple in Seoul, South Korea, November 12, 2015. About 630,000 students on Thursday sat for the annual exams that could lead them to one of the country's top universities. In South Korea, there is no higher achievement than to be accepted by a prestigious university. As a result, many students prepare for these entrance exams from an early age, often studying up to 16 hours a day for years to take this test. (Photo by Kim Hong-Ji/Reuters)

The Museum of Feelings doesn't really have “exhibits" in the conventional sense; rather, visitors move from one themed alcove to another, five in total, each with its own distinctive aroma. The “Optimistic Room," bathed in vivid pink and purple light, is little more than a lightshow, with patrons using small reflective panels to bounce light around the room. Here: People interact in the “optimistic” room at the Museum of Feelings, a pop-up installation in New York, December 15, 2015. (Photo by Stephanie Keith/Reuters)

From Tibetan monks playing basket ball with ice thawing high up in the Himalayas, to the pollution that hides behind the Taj Mahal, here’s pick from 60 exceptional environmental photographs, by photographers and filmmakers from 70 countries, that will go on show at the Royal Geographical Society in London from 29 June to 21 August. The winners will be announced on 28 June. Here: Gravel Workmen of Chittagong, Bangladesh, by Faisal Azim. Gravel workmen look through a glass window at a gravel-crushing yard in Chittagong. Full of dust and sand, it is an extremely unhealthy environment for working, but still hundreds of people work here for their livelihoods. (Photo by Faisal Azim/2016 Atkins CIWEM Environmental Photographer of the Year)

Gorgeous galaxies and stunning stars make up this selection of pictures from the shortlisted entries for this year’s Insight Astronomy Photographer of the Year award. The winners will be announced on 15 September, and an exhibition of the winning images will be will be displayed in a free exhibition at the Royal Observatory Greenwich’s Astronomy Centre from 17 September. Here: “Seven Magic Points”. The rusty red swirls of the circular, iron sculpture Seven Magic Points in Brattebergan, Norway mirror the rippling aurora above. (Photo by Rune Engebø/Royal Observatory Greenwich’s Astronomy Photographer of the Year 2016/National Maritime Museum)

A member of the Indian company Margi Kathakali theatre performs during “Kijote Kathakali”, a Kathakali recital based on the Spanish classic “Don Quixote”, at the Niemeyer Center in Aviles, northern Spain, July 29, 2016. The performance and text captured the essence of the novel while sticking to the format of Kathakali. Kathakali is one of the major forms of classical Indian dance. (Photo by Eloy Alonso/Reuters)

Miss Colombia Ariadna Gutierrez, right, and Miss Philippines Pia Alonzo Wurtzbach wait for the announcer to name the new Miss Universe at the Miss Universe pageant on Sunday, December 20, 2015, in Las Vegas. Gutierrez was incorrectly crowned before Wurtzbach was named Miss Universe. (Photo by John Locher/AP Photo)

“North and South Korea staged dueling war games Monday as threatening rhetoric from the rivals rose to the highest level since North Korea rained artillery shells on a South Korean island in 2010”. – Associated Press. Photo: North Korean soldiers with weapons attend military training in an undisclosed location in this picture released by the North’s official KCNA news agency in Pyongyang March 11, 2013. South Korea and U.S. forces are conducting large-scale military drills until the end of April, while the North is also gearing up for a massive state-wide military exercise. North Korea has accused the U.S. of using the military drills in South Korea as a launch pad for a nuclear war and has threatened to scrap the armistice with Washington that ended the 1950-53 Korean War. (Photo by KCNA/Reuters)

A view of the construction site of the Chateau de Guedelon near Treigny in the Burgundy region of France, September 13, 2016. Blacksmiths, stonemasons and quarry men are hard at work in a Burgundy forest building a 13th-century-style castle using the most basic tools and materials, replicating the methods used hundreds of years ago to better understand them. (Photo by Jacky Naegelen/Reuters)