The bell tower of Pirago, a symbol of tragedy, miraculously escaped the destructive wave of Vajont and is one of the key stops on the memory route, one of the icons of the tragedy that overwhelmed 1910 human lives.
The belfry and the east-facing apse constitute the remains of the ancient church of Pirago, which was destroyed in the Vajont disaster. Dedicated to Saint Thomas the Apostle, it was built towards the end of the 1400s by the Regolieri of Longarone, Igne, and Pirago, who maintained it and buried the deceased in the adjacent cemetery, which was later expanded after Napoleon's edict. In front of the apse, a stone pavement from Castellavazzo similar to the original has been created, bordered by stone walls that outline the perimeter of the ancient nave.
In 2000, the site underwent a recovery intervention that involved, in addition to the arrangement of the cemetery, also the paving of the former church.
Recently renovated, it is visitable 1 km from the center of Longarone.