Credits:Unsplash
This underwater tunnel connects the United Kingdom with mainland Europe, running beneath the English Channel.
Credits:Flickr
Located in Switzerland, this is the world's longest and deepest railway and deepest traffic tunnel.
Credits:Flickr
This Japanese tunnel is the longest and deepest underwater tunnel in the world, linking Honshu and Hokkaido islands.
Credits:Flickr
This tunnel under the Bosphorus Strait in Turkey connects the European and Asian sides of Istanbul.
Credits:Flickr
Situated in Norway, this is the longest road tunnel in the world, stretching over 24.5 kilometres.
Credits:Flickr
A major infrastructure project in South Korea, this tunnel is known for its complex design and engineering feats.
Credits:Wikimedia Commons
Located in India, it is an engineering marvel designed to improve connectivity in challenging terrains.
Credits:Unsplash
This tunnel in South Korea is notable for its innovative design and role in regional development.
Credits:Unsplash
Have you visited any of these tunnels?
Credits:Unsplash