Haha, the reason why it weights so much is because it is mostly granite.
And they have a slight moist problem, so I'm lifting these stones near wall, they're gonna build a new "terassi" there, from wood instead of the concrete stone they had there previously. They are also gonna protect the wall from moist dmg with pebbles for that purpose, and then lead the water that will go trough it off the cliff.
100 yo buildings have their problems.
We're gonna relocate the stones later this week. But for that, I will get help xD