Along the hiking paths of Blenio Valley, it is possible to encounter many important buildings of the Romanesque. A variety of bell towers, churches, chapels, frescoes, bridges and palaces, precious witnesses of art and architecture contribute significantly, together with the natural heritage, for tourist attractiveness of this valley.
They are clearly identifiable through brown signals and themed panels.
- Historic Trail No. 1 starts and finishes in Acquarossa. It has a length of 14.5 km and a total duration of 5 hours. It is advisable to have a day to enjoy this route.
- Historical trail number 2 starts and finishes in Acquarossa. It is 4.5 km long and lasts 1 hour and 55 minutes. A half day is needed to fully appreciate this route.
- Historical Path number 3 starts from Acquarossa and arrives in Malvaglia and vice versa. It has a length of 7 km and a total duration of 2 hours. It is advisable to have a day to enjoy this itinerary.
- Historic Trail number 4 starts in Acquarossa and arrives in Olivone and vice versa. It is 11 km long and lasts 3 hours and 45 minutes. A day is needed to fully appreciate this itinerary.