16 cathedrals visited by Adriana Soares de Camargo Oppert

Barcelona Cathedral

Bologna Cathedral

Cathedral of Santa Maria del Fiore

Duomo di Siena

Helsinki Cathedral

Lisbon Cathedral

Milan Cathedral

Notre Dame de Paris

Riga Cathedral

Saints Peter and Paul Cathedral

St Mark's Basilica

St Paul's Cathedral

St. Patrick's Cathedral

St. Peter's Basilica

Uspenski Cathedral

Washington National Cathedral