Migratory flamingos arriving from Europe are seen in Port Fouad Nature Reserve, on the outskirts of Port Said Governorate, Egypt on December 12, 2022. (Photo by Mohamed Abd El Ghany/Reuters)
A giraffe quenches its thirst at a watering hole at Zimanga Private Game Reserve, South Africa in the second decade of December 2023. (Photo by Janette Hill/Animal News Agency)
A blue tit takes umbrage at a wing mirror at Suffolk Wildlife Trust’s Arger Fen & Spouse’s Vale reserve in United Kingdom on April 16, 2021. (Photo by Angela Lord/Triangle News)
A majestic elephant visits the watering hole at the Zimanga Private Game Reserve in South Africa under the Milky Way in August 2022. (Photo by Sean Weekly/Animal News Agency)
A demonstrator kicks a riot police vehicle during an unauthorized march called by the Chilean student federations to protest against government's education reform, in Santiago, Chile July 5, 2016. (Photo by Ivan Alvarado/Reuters)
The is a rapid transit system serving Moscow and the neighbouring town of Krasnogorsk. Opened in 1935 with one 11-kilometre (6.8 mi) line and 13 stations, it was the first underground railway system in the Soviet Union. As of 2011, the Moscow Metro has 185 stations and its route length is 305.7 kilometres (190.0 mi). The system is mostly underground, with the deepest section 84 metres (276 ft) at the Park Pobedy station. The Moscow Metro is the world's second most heavily used rapid transit system after Tokyo's twin subway.