Santa Maria d'Oló Winter Main Festival Activity · Santa Maria d'Oló, Moianès, Barcelona Image of Santa Maria d'Oló, not of the place itself. The Festa Major d'Hivern de Santa Maria d'Oló is held in a municipality whose castle and lands passed in 1369 to the monastery of l'Estany; on 15 August 1395 the local households stormed and burned the monastery in a dispute over the redemption of the lordship that dragged on until 1606. It also preserves Modernista buildings linked to Puig i Cadafalch. Photo: jordi domènech (CC BY-SA 3.0) What to see and do in Santa Maria d'Oló