The 'Juval' Messner Mountain Museum. Near Merano, South Tyrol, Italy. The Messner Mountain Museums (MMM) are a group of museums across this region of South Tyrol, dedicated to the mountain world, created by renowned mountaineer Reinhold Messner. MMM Juval is housed in a restored 13th century castle perched high above the valley, and is also Messner's home for part of the year. © Rudolf Abraham