Poland’s largest tourist attraction, sits 100 meters below the ground. And it’s huge. Beyond the tourist route, its actual depth is 327 meters and is almost 300 kms long. Work began in the salt mine in the century, and it provided table salt up until
Polish Generał Józef Haller, in 1916 he fought with the Brigade of the Polish Legion against Russia. In 1918 he created what was known as the Blue Army (from the color of its French Uniforms, aka Haller's Army).