The highest peak of Switzerland is also the second-highest mountain in the Alps. What is it?
The Dufourspitze (4634 m above sea level) is the highest peak of Monte Rosa, a huge ice-covered mountain massif in the Alps. Dufourspitze is the highest mountain peak of both Switzerland and the Pennine Alps and is also the second-highest mountain of the Alps and Europe outside the Caucasus. It is located between Switzerland and Italy.
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What is the longest and deepest tunnel in the world?
Eurotunnel (English Channel)
Lötschberg (Switzerland - Germany)
Seikan (Hokkaido-Honshu Island)