U.S. Border Patrol agents shut down the construction of a 2,918-foot-long tunnel connecting Tijuana and San Diego with the ...

U.S. Customs and Border Protection agents have discovered and closed a tunnel carved into the ground between San Diego and ...

Copenhagen is expected to receive 30% more rainfall by the end of the century. The city is responding with a massive ...

An under-threat heritage centre dedicated to preserving a mysterious labyrinth of tunnels in Liverpool has raised cash to ...