Extended in the centre of a vast complex of highlands, Pescocostanzo has a renaissance architectonic imprint.
The village is constituted by many buildings built in the 1400s and 1500s and keeps a valuable basilica built in the thirteenth century: the Colleggiata.
The church was restored: its faĆ§ade was built in the XVI century.
It is wide and it has a portal made in the 1500s. inside there are 5 naves divided by wide arcades: the central nave is covered by a notable ceiling in wood.
At the bottom of the central nave there is an altar in wood of Madonna del Colle and, in the central niche, Virgin Mary in throne with Child, a sculpture in wood made in the XI century.
In Pescocostanzo there are many old nobiliary palaces such as Palace Fanzago, Palace Grilli and Palace Cocco Palmieri.