What is the world's largest church building by area?
St. Paul's Cathedral in London
St. Peter's Basilica in Rome
Saint Isaac's Cathedral in St Petersburgh
Basilica of the National Shrine of Our Lady of Aparecida
St. Peter's Basilica (15,160m²), Basilica of the National Shrine of Our Lady of Aparecida (12.000m²), St. Paul (7,875m²), St. Isaac's Cathedral (7,000 m²)
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Answers by country
St. Paul's Cathedral in London
St. Peter's Basilica in Rome
Saint Isaac's Cathedral in St Petersburgh
Basilica of the National Shrine of Our Lady of Aparecida
answers
 France
France13
 Republic of Ireland
Republic of Ireland20
 Austria
Austria105
 Australia
Australia26
 India
India147
 Germany
Germany523
 Switzerland
Switzerland54
 Pakistan
Pakistan18
 the Netherlands
the Netherlands13
 the Philippines
the Philippines38
 the United States
the United States148
 the United Kingdom
the United Kingdom77
 Greece
Greece18
 Poland
Poland2153
 Spain
Spain12
 Canada
Canada10