alps3526 Ice tunnel leading to the ridge exiting Aiguille du Midi. Alps, France http://www.terragalleria.com/mountain/mountain-image.alps3526.html deva32589 Entrance to a abandoned gallery of Cashier mine, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32589.html deva32590 Gallery of Cashier mine, morning. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32590.html deva32615 Access tunnel to Furnace Creek Inn by night. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva32615.html mexi32331 Houses on a hillside built above a tunnel. Guanajuato, Mexico http://www.terragalleria.com/north-america/mexico/guanajuato/picture.mexi32331.html mexi32352 Juarez street and subterranean street with bus at night. Guanajuato, Mexico http://www.terragalleria.com/north-america/mexico/guanajuato/picture.mexi32352.html mexi32377 Women walking in a tunnel. Guanajuato, Mexico http://www.terragalleria.com/north-america/mexico/guanajuato/picture.mexi32377.html mexi32404 Shaft of La Valenciana mine. Guanajuato, Mexico http://www.terragalleria.com/north-america/mexico/guanajuato/picture.mexi32404.html mexi32425 Subtarranean passageway with street and sidewalk. Guanajuato, Mexico http://www.terragalleria.com/north-america/mexico/guanajuato/picture.mexi32425.html mexi32461 Entrance of one of the subterranean streets with a house built above. Guanajuato, Mexico http://www.terragalleria.com/north-america/mexico/guanajuato/picture.mexi32461.html taiw55261 Steep sea cliff and tunnel. Taroko National Park, Taiwan http://www.terragalleria.com/asia/taiwan/taroko/picture.taiw55261.html taiw55276 Door and tunnel, Changchun trail. Taroko National Park, Taiwan http://www.terragalleria.com/asia/taiwan/taroko/picture.taiw55276.html taiw55309 Gorge at Tunnel of Nine Turns, Taroko Gorge. Taroko National Park, Taiwan http://www.terragalleria.com/asia/taiwan/taroko/picture.taiw55309.html taiw55310 Bridges spanning Liwu River, Taroko Gorge. Taroko National Park, Taiwan http://www.terragalleria.com/asia/taiwan/taroko/picture.taiw55310.html usut45250 Road tunnel in pink limestone cliff. Utah, USA http://www.terragalleria.com/america/utah/zion-area/picture.usut45250.html