The Budapest-Belgrade railway, connecting the capitals of Hungary and Serbia, has a history of more than a hundred years. Some parts of its original infrastructure, however, have been lying idle for so long that they've become a potential danger to the environment. In "Hungary: A New Eurasia Link", the last episode of our documentary series "The Call of the Silk Road", we look at how young professionals have been overcoming such challenges in the construction of a new line. 

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