18 cathedrals visited by Eric Slaffa
Basilica de San Francisco el Grande
Cathedral of Our Lady
Cathedral of Santa Maria del Fiore
Cathedral of St. Michael and St. Gudula
Cologne Cathedral
Frankfurt Cathedral
Milan Cathedral
Notre Dame de Paris
Saint Vitus Cathedral
Salzburg Cathedral
St Mark's Basilica
St Paul's Cathedral
St. Hedwigs Cathedral
St. Mary's Cathedral
St. Patrick's Cathedral
St. Peter's Basilica
