Fantastic image inside a Cooling Tower by Pippa Killi Nova. Below the description of the series from the author of the picture:
Cooling Towers are fascinating structures. Giant, hollow concrete cylinders which have to withstand extreme environmental conditions. Right here it concerns two towers of a former power plant somewhere in Belgium. One is small and one is huge. It took some tricky climbing to reach the inside of both towers, but once inside and start gazing up into the sky, there nothing left but beholding the majesty of this dazzling structure.