the caves of nottingham in nottinghamshire,...
Underneath the modern city of Nottingham is a large and ancient labyrinthine underworld. Over 550...
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the crater in petersburg, virginia
In June of 1864,during the American Civil War, Union forces began to siege the accomplice-controlled...
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laeken cemetery crypt in brussels, belgium
Beneath Laeken Cemetery lies an extensive crypt whose funerary galleries stretch out in eerie...
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tyne cyclist and pedestrian tunnels in jarrow,...
Buried beneath the river bed of the River Tyne is a pedestrian and cyclist tunnel that was built to...
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m. s. factory, valley in rhydymwyn, cymru
Located in a lovely loney area of North Wales,Rhydymwyn Valley has been concealing a secret for over...
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rifle sight notch in winter park, colorado
Colorado's mountains carry out not lend themselves well to the building of railroads. Due to...
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rifle sight notch in nederland, colorado
Colorado's mountains do not lend themselves well to the building of railroads. Due to the...
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tonkararin in nagomi, japan
Hidden in the countryside of northern Kyushu is a mysterious set of human-made tunnels. Some are so...
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london just reopened the entrance to this...
The first underwater tunnel ever built opened in London in 1843,paving a path for cities everywhere...
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watch a tunnel boring machine shred open a giant...
All the satisfaction in the world exists through a tunnel boring machine that finally cracks the...
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