A sleepy California town known for Danish pastries, windmills and quaint European charm is now drawing attention for a much darker mystery lurking beneath its streets. Solvang, a tiny Central Coast ...

Did you know there's a secret tunnel under Henley Street? And no, we're not talking about the one for cars, or the pedestrian bridge. This is a dark, damp, somewhat stinky passageway that connects the ...

President Donald Trump has renewed threats to bomb Pickaxe Mountain, a site near Iran’s Natanz nuclear enrichment site where the country’s nuclear centrifuges may sit in subterranean tunnels.

LANSING, MI — Two Michigan agencies approved key permits Wednesday for the Enbridge Line 5 tunnel to be built under the Straits of Mackinac. Michigan’s Department of Natural Resources and the ...

Michigan regulators renewed a key permit for Enbridge's Great Lakes Tunnel Project. The project would build a concrete tunnel to house a new oil pipeline under the Straits of Mackinac. Environmental ...

A massive tunnel is being built under the ocean to connect Denmark and Germany, allowing car travel in just 10 minutes.

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A federal judge says that the administration’s attempts to block money for the $16 billion rail project were “flagrantly” illegal. By Patrick McGeehan See more of our coverage in your search ...