Right on the border between Belgium and Luxembourg, the Huldange tunnel was inaugurated in 1889, the last hurdle for goods trains running on the Vennbahn.
In the early twentieth century, a tunnel more than 140 meters long was excavated right through the rock on which the castle ruins of the Counts of Dalhem rest to construct local tramway line 466 between Liège and 's-Gravenvelden.
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Once a year, the Arenberg coal mine and two abandoned railway bridges play a starring role during the passage of the spring cycle classic: Paris-Roubaix.
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