18 cathedrals visited by Margarita du Guerny

Barcelona Cathedral

Catedral de València

Cathedral of Santa Maria del Fiore

Cologne Cathedral

Dubrovnik Cathedral

Duomo di Siena

Granada Cathedral

Helsinki Cathedral

Marseille Cathedral

Mezquita

Milan Cathedral

Notre Dame de Paris

Porto Cathedral

Saint Stephen Cathedral

Saint-Peters Basilica

Seville Cathedral

St Paul's Cathedral

St. Peter's Basilica