And I was worried about what they now probably call their surface fortifications......
Here is another marvel from Europe, the Dutch put a tunnel under a highway in one weekend.
https://www.youtube.com/watch?v=DEa9jrkQm0c
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"It is because they have so much to give and give it so lavishly...that men love the mountains and go back to them again and again." Sir Francis Younghusband
Essayons
By Dand
"In the school of the wilds,there is no graduation day"Horace Kephart
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