The "Via del Mercato", from the Middle Ages to the 19th century, was the way travelled by merchants, woodsmen, stockmen and migrants passing because of work from the Ticino to the Ossola.
This connection was used since ancient times because it is an easy way through the mountains, due to the periadriatic seam, the geologic fault along which are aligned the Val Vigezzo, Locarno, Bellinzona and the Valtellina.
The Santuario della Madonna del Sangue in Re, built in neo-Byzantine style, pursuant to a miracle that happened in 1494, became a main religious point in the area.
The Chimney sweeper Museum in Santa Maria Maggiore conserve pictures, objects and tools of a forgotten profession, that played and important role in the economy of the Val Vigezzo.
[2] The main square in Craveggia village is called the Val Vigezzo's "Piazza dei Miracoli" because it holds two important religious buildings: the parish church and the baptistery.