Splügengalerie, Long gallery in Grisons, Switzerland.
The Splügengalerie is a passage carved through the mountains in Grisons that runs for 312 meters. It takes you through a rock corridor where the walls show different layers of stone exposed by the construction work.
This passage was created in the 1800s as part of the mountain infrastructure for trade across Alpine passes. It became an important route connecting the valleys on either side of the range.
The gallery stands as a testament to Swiss engineering methods, demonstrating the technical capabilities of mountain infrastructure construction in the region.
You should bring proper hiking boots with good grip since the ground can be slippery and wet. Only visit during stable weather, as conditions change quickly in the mountains.
The inner rock walls reveal clear layers of stone that tell the story of millions of years of mountain formation. Walking through, you can see these geological records without any equipment.
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