The longest rail tunnel project, connecting Zurich to Milan through the Alps has come to an end.
The new route will make rail freight more efficient, help suporting heavier cargo and reduce the number of diesel guzzling vehicles on the road, thereby improving traffic and pollution.
Swiss engineer Carl Eduard Gruner imagined the tunnel under the Alps in 1947 and predicted it would be completed by the start of the 21st century.
Some 2400 workers were involved in the construction which costs $12 billion to construct.
The 57km rail tunnel involved the removal of 28 million tonnes of rock that had to be excavated from the mountain near the Gotthard pass.