Above, a balcony jutting from the Messner Mountain Museum Corones that's carved out of the summit of Mount Kronplatz in Tyrol, Italy, 2,275 meters above sea level. Zaha Hadid Architects designed the mountaineering museum that is built entirely of concrete on steel scaffolding. More photos and construction time-lapse video below.
"The idea is that visitors can descend within the mountain to explore its caverns and grottos, before emerging through the mountain wall on theater side, out onto the terrace overhanging the valley far below with spectacular, panoramic views," Hadid says.
(via Uncrate)