The thirteenth-century Creggio tower, clearly visible from the train, is one of the lookout structures that characterise the Vigezzo Valley and the nearby Ossola Valley.
Its history is linked to the tale of Fra' Dolcino, the heretic sentenced to be burned at the stake and mentioned by Dante in his Divine Comedy. In fact, legend has it that he took refuge here in the thirteenth century. The tower was damaged in the fifteenth century and repaired by Ludovico il Moro after the battle of Crevola in 1487.
It is now private property and not open to the public. The train journey is therefore the best way to see it.