A train of the Children's Railway is seen in Budapest, Hungary, on June 3, 2021. The Children's Railway restarts operation after seven months' break because of the COVID-19 pandemic in Budapest. The narrow gauge railway runs through the woods of the hills on the Buda side in Budapest. It is the most interesting attraction in Budapest as most of the commercial services and traffic management are carried out by children aged ten to fourteen. Under adult's supervision, children here are responsible to operate the switches and signals, print tickets and keep passengers informed. (Photo by Attila Volgyi/Xinhua)
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