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Proposed tunnels in Europe
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Subcategories
This category has the following 9 subcategories, out of 9 total.
Proposed undersea tunnels in Europe
(14 P)
Proposed railway tunnels in Europe
(9 P)
Proposed road tunnels in Europe
(14 P)
D
Proposed tunnels in Denmark
(3 P)
N
Proposed tunnels in Norway
(9 P)
R
Proposed tunnels in Russia
(3 P)
S
Proposed tunnels in Sweden
(3 P)
Proposed tunnels in Switzerland
(2 P)
U
Proposed tunnels in the United Kingdom
(3 P)