High Quality Content by WIKIPEDIA articles! The Sacro Monte di Orta (literally: Sacred mountain of Orta) is a Roman Catholic devotional complex in the comune of Orta San Giulio (Piedmont, northern Italy) on the summit of a hill known as San Nicolao, which faces the western short of Lake Orta. It is one of the Sacri Monti of Piedmont and Lombardy, included in UNESCO World Heritage list. Construction of the complex, dedicated to St. Francis of Assisi, began in 1583. The project by the Capuchin friar Cleto da Castelletto Ticino involved 36 chapels, of which only 20 were built. Until 1630 they were mostly in the Mannerist style, but from the mid-17th century Baroque and other influences predominated. Construction ended in 1788.