18 cathedrals visited by Gian Berta
Barcelona Cathedral
Berlin Cathedral
Cathedral of Santa Maria del Fiore
Cathedral of St. Michael and St. Gudula
Christ Church Cathedral
Cologne Cathedral
Frankfurt Cathedral
Karlskirche
Mezquita
Milan Cathedral
Munich Frauenkirche
Naples Cathedral
Notre Dame de Paris
Pisa Cathedral
St Mark's Basilica
St. Patrick's Cathedral
