Photographer: Bogumil Kruzel, Winner of the CIWEM Award
Photographer description: Wieliczka Salt Mine. Engels Leaching Tower, 135m below ground level. A few such towers were built in the mine. Saline water flows through the tower, dissolving lumps of salt placed inside to produce fully saturated brine.
Check out the other winners of 2014's Atkins CIWEM Environmental Photographer of the Year awards by flipping through our breathtaking gallery of the top five entries!