Town Hall of Olost Monument · Olost, Lluçanès, Barcelona Image of Olost, not of the place itself. Until 1728, the council and jurats of Olost met at Casa Gran, one of the oldest masos in the Lluçanès, before the town, which went on to become the head of the comarca, had its own town hall. Photo: jordi domènech (CC BY-SA 3.0) What to see and do in Olost