21 cathedrals visited by Mayya Sim

Alexander Nevsky Cathedral

Barcelona Cathedral

Cathedral of St. Michael and St. Gudula

Cathedral of the Immaculate Conception

Duomo di Siena

Karlskirche

Kazan Cathedral

Milan Cathedral

Notre Dame de Paris

Riga Cathedral

Saint Isaac Cathedral

Saint Stephen Cathedral

Saint-Andrew Cathedral

Saints Peter and Paul Cathedral

Smolny cathedral

St Mark's Basilica

St Patrick's Cathedral

St. Mary's Cathedral

St. Peter's Basilica

St. Peter's Church

Yelokhovo Cathedral