This train tunnel below Malmö in Sweden was finished in 2010 six months earlier than planned and at a cost 10% below budget. https://en.wikipedia.org/wiki/City

This train tunnel below Malmö in Sweden was finished in 2010 six months earlier than planned and at a cost 10% below budget. https://en.wikipedia.org/wiki/City_Tunnel_(Malm%C3%B6) https://en.wikipedia.org/wiki/City_Tunnel_(Malm%C3%B6)