28 cathedrals visited by Aleksander Perczynski

Alexander Nevsky Cathedral

Bologna Cathedral

Cologne Cathedral

Duomo di Siena

Frankfurt Cathedral

Helsinki Cathedral

Karlskirche

Kazan Cathedral

Mezquita

Milan Cathedral

Munich Frauenkirche

Nice Cathedral

Notre Dame de Paris

Notre-Dame de Nice

Saint Isaac Cathedral

Saint Sophia Cathedral

Saint Stephen Cathedral

Saint Vitus Cathedral

Saints Peter and Paul Cathedral

Smolny cathedral

St Mark's Basilica

St Paul's Cathedral

St. Florian's Cathedral

St. John's Archcathedral

St. Patrick's Cathedral

Uspenski Cathedral

Washington National Cathedral

Wawel Cathedral