National Geographic Photographer Jeff Gusky‘s Hidden World of World War I Photo of the Day. Learn more here: Jeff GuskyTumblr (3.0; @hiddenwwi)http://hiddenwwi.tumblr.com/<img src="https://78.media.tumblr.com/a43320c301539fff3cba27dae7f50ba7/tumblr_pazlydCU7A1tkzuafo1_500.jpg"/><br/><br/><p>German bunker on the mountain battlefield at Tete du Violu on the Vosges front. #WWI</p>http://hiddenwwi.tumblr.com/post/175307041645http://hiddenwwi.tumblr.com/post/175307041645Wed, 27 Jun 2018 10:06:11 -0500WWI<p>Inside German bunker at Hartmannswillerkopf.<br/> #WWI #Underground</p>http://hiddenwwi.tumblr.com/post/175274648020http://hiddenwwi.tumblr.com/post/175274648020Tue, 26 Jun 2018 10:46:42 -0500WWIUnderground<img src="https://78.media.tumblr.com/78ee82edd2d13cd56cfa063eb81e2d48/tumblr_pavwmsx3ce1tkzuafo1_500.jpg"/><br/><br/><p>German bunker with caricature of Bismarck located near the Swiss border. #WWI #Underground</p>http://hiddenwwi.tumblr.com/post/175240170040http://hiddenwwi.tumblr.com/post/175240170040Mon, 25 Jun 2018 10:06:27 -0500WWIUnderground<img src="https://78.media.tumblr.com/ef9288d68873631018d0c8eea0f1b28b/tumblr_pau68izeWH1tkzuafo1_500.jpg"/><br/><br/><p>Soldier’s spoon with two bullet holes. Were these bullets fatal to the soldier carrying this spoon in his pack?</p>http://hiddenwwi.tumblr.com/post/175208192905http://hiddenwwi.tumblr.com/post/175208192905Sun, 24 Jun 2018 11:38:41 -0500<img src="https://78.media.tumblr.com/537e87ba9f478a2133dfaf5cb45be004/tumblr_pas8lr6yUm1tkzuafo1_500.jpg"/><br/><br/><p>Surgeon’s sink in the operating room of a small German field hospital on a mountainside at the Hartmannswillerkopf battlefield on the Vosges Front.<br/> #WWI #Underground</p>http://hiddenwwi.tumblr.com/post/175173845855http://hiddenwwi.tumblr.com/post/175173845855Sat, 23 Jun 2018 10:34:38 -0500WWIUnderground<img src="https://78.media.tumblr.com/812039ea8016fcd57764a1eb219248ff/tumblr_paqdpulLEP1tkzuafo1_500.jpg"/><br/><br/><p>Original drinking water source on the battlefield at Hartmannswillerkopf in the Vosges Mountains.</p>http://hiddenwwi.tumblr.com/post/175141903845http://hiddenwwi.tumblr.com/post/175141903845Fri, 22 Jun 2018 10:29:53 -0500<img src="https://78.media.tumblr.com/c36b2c9b1344845328455240be9bd21d/tumblr_paog0rzFCn1tkzuafo1_500.jpg"/><br/><br/><p>Stairs emerging from a mountainside bunker into a steep trench cut out of rock at Hartmannswillerkopf on the Vosges Front. #WWI #Underground</p>http://hiddenwwi.tumblr.com/post/175108490170http://hiddenwwi.tumblr.com/post/175108490170Thu, 21 Jun 2018 09:24:24 -0500WWIUnderground<img src="https://78.media.tumblr.com/f15d826e3ab8457c094896d62606bc0c/tumblr_pamnzgWCkF1tkzuafo1_500.jpg"/><br/><br/><p>Water supply for the front line at Tete-de-Faux.</p>http://hiddenwwi.tumblr.com/post/175077174335http://hiddenwwi.tumblr.com/post/175077174335Wed, 20 Jun 2018 10:21:15 -0500<img src="https://78.media.tumblr.com/76109bf2c3ce9fbea27c42d5adb77120/tumblr_pakq9zQGFK1tkzuafo1_500.jpg"/><br/><br/><p>Series of underground bunkers including an underground field hospital close to the hilltop front line trenches at Tete-de-Faux.</p>http://hiddenwwi.tumblr.com/post/175042609675http://hiddenwwi.tumblr.com/post/175042609675Tue, 19 Jun 2018 09:15:34 -0500<img src="https://78.media.tumblr.com/a16dfdf9978deaef11bfa3608faa0dee/tumblr_paives0x1g1tkzuafo1_500.jpg"/><br/><br/><p>Original WWI German swimming pool just behind the front lines of the Tête du Violu battlefield in the Vosges Mountains. <br/> #WWI #Underground</p>http://hiddenwwi.tumblr.com/post/175009279085http://hiddenwwi.tumblr.com/post/175009279085Mon, 18 Jun 2018 09:11:14 -0500WWIUnderground<img src="https://78.media.tumblr.com/3cb9194be774490b4cf372c01ee2bff0/tumblr_pah4z9AcUc1tkzuafo1_500.jpg"/><br/><br/><p>During WWI, a German military dentist office was on the ground floor of this home located behind the front lines of the Tête du Violu battlefield in the Vosges Mountains.</p>http://hiddenwwi.tumblr.com/post/174977984965http://hiddenwwi.tumblr.com/post/174977984965Sun, 17 Jun 2018 10:42:44 -0500<img src="https://78.media.tumblr.com/a260206b8c4c831bff94c170931c0ca3/tumblr_pafa3m9FBe1tkzuafo1_500.jpg"/><br/><br/><p>Bunker on a front line trench on the Hartmannswilerkop battlefield bearing inscriptions by soldiers from both sides.</p>http://hiddenwwi.tumblr.com/post/174946795380http://hiddenwwi.tumblr.com/post/174946795380Sat, 16 Jun 2018 10:38:09 -0500<img src="https://78.media.tumblr.com/cdbc45ccd7a85428528f4795faaadb28/tumblr_padnnhuLGD1tkzuafo1_500.jpg"/><br/><br/><p>Live shell found on the battlefield at Hartmanswillerkop on the Vosges Front. #WWI #Underground</p>http://hiddenwwi.tumblr.com/post/174920609035http://hiddenwwi.tumblr.com/post/174920609035Fri, 15 Jun 2018 13:35:39 -0500WWIUnderground<img src="https://78.media.tumblr.com/ead8ae75540fd01d814a6f3b77b83758/tumblr_pabon2PLGC1tkzuafo1_500.jpg"/><br/><br/><p>WWI bunker of elite German troops on the battlefield at Hartmannswillerkopf.</p>http://hiddenwwi.tumblr.com/post/174887669360http://hiddenwwi.tumblr.com/post/174887669360Thu, 14 Jun 2018 12:01:50 -0500<img src="https://78.media.tumblr.com/ac66cd3df354c381b997a65b90b8b1a8/tumblr_pa9mv5LnsA1tkzuafo1_500.jpg"/><br/><br/><p>30,000 men died here atop the mountaintop WWI battlefield of Hartmannswillerkopf.</p>http://hiddenwwi.tumblr.com/post/174852898630http://hiddenwwi.tumblr.com/post/174852898630Wed, 13 Jun 2018 09:28:17 -0500<img src="https://78.media.tumblr.com/3c878c67d3401496ab157492d7554414/tumblr_pa805pzbZB1tkzuafo1_500.jpg"/><br/><br/><p>Stack of spent shell casings in Sanctuary Wood, Belgium.</p>http://hiddenwwi.tumblr.com/post/174824828105http://hiddenwwi.tumblr.com/post/174824828105Tue, 12 Jun 2018 12:20:11 -0500<img src="https://78.media.tumblr.com/b709da28ced697f3f0fdab088ffdc60c/tumblr_pa65ajru4c1tkzuafo1_500.jpg"/><br/><br/><p>Many places along the Western Front have been relatively untouched for the past century and reveal the unfathomable violence of WWI as seen here with this shell hole in Sanctuary Wood, Belgium.<br/> #WWI #Underground</p>http://hiddenwwi.tumblr.com/post/174792288180http://hiddenwwi.tumblr.com/post/174792288180Mon, 11 Jun 2018 12:15:54 -0500WWIUnderground<img src="https://78.media.tumblr.com/8e1fea0d93bbf56a4b50a96ee3acd603/tumblr_pa43qeMR7G1tkzuafo1_500.jpg"/><br/><br/><p>Not sure if the nail in head represents ghoulish satire or if it served a practical purpose. Soldiers suspended items off the floor to keep them out of reach of rats.<br/> #WWI #Underground</p>http://hiddenwwi.tumblr.com/post/174755396560http://hiddenwwi.tumblr.com/post/174755396560Sun, 10 Jun 2018 09:47:02 -0500WWIUnderground<img src="https://78.media.tumblr.com/1443b2b7376adb2f5bd31ff466debbdb/tumblr_pa2ej3cgux1tkzuafo1_500.jpg"/><br/><br/><p>Portrait of German WWI soldier in the hayloft of an old French Barn close to the front line.</p>http://hiddenwwi.tumblr.com/post/174726864595http://hiddenwwi.tumblr.com/post/174726864595Sat, 09 Jun 2018 11:45:02 -0500<img src="https://78.media.tumblr.com/d6a568b65679b6f92d58606695c08343/tumblr_pa0e678DOQ1tkzuafo1_500.jpg"/><br/><br/><p>“US Forever” was inscribed a century ago in this farmhouse cellar where soldiers from the US Army’s 1st Division sought safety while a violent battle raged above.</p>http://hiddenwwi.tumblr.com/post/174693724015http://hiddenwwi.tumblr.com/post/174693724015Fri, 08 Jun 2018 09:42:07 -0500