Because some youths threw rocks and broke the window of a caboose on a passing train, an investigation resulted in the discovery of a carefully camouflaged cave near the railroad tracks in the ...

Carved into the rock beneath a Swedish city, a huge man-made cave system dating back to the Cold War is being used to heat local housing. DW found out how it works ...

Vattenfall, SSAB and LKAB have reached the halfway point in the construction of a rock cavern storage facility in a coastal city in northern Sweden. The 100-cubic-meter facility is being ...