Stacked Climb
The Trbovlje Power Station in Slovenia was shuttered after 100 years of operation in 2014 and now sits dormant. Its chimney towers 360m into the air, enough to clear the valley peaks so its emissions could be cleared away in any weather condition. This requirement was the vital ingredient in creating the tallest flue-gas stack in Europe. That and about 11,866 cubic metres of concrete and 1,079 tons of reinforcing steel.
Climbers, Janja Garnbret and Domen Skofic, recently conquered this monolith in a climb that took them 7.5 hours. A previous effort that was disqualified for too many falls took the pair 12 hours.