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There are 2.5 million Mosques in the world.
See the related link for a list of architecture museums in Austria
There are many mosques in Northern Ireland.There are many mosques in Northern Ireland.There are many mosques in Northern Ireland.There are many mosques in Northern Ireland.There are many mosques in Northern Ireland.There are many mosques in Northern Ireland.There are many mosques in Northern Ireland.There are many mosques in Northern Ireland.There are many mosques in Northern Ireland.There are many mosques in Northern Ireland.There are many mosques in Northern Ireland.
The Muslim house of worship is a mosque, not a synagogue (which is where Jews pray). There are hundreds of Muslim mosques in the United States.
Please see the Related Link for a list of major mosques in the United States.
There are nearly 3000 mosques in Istanbul which has the most mosques in the world.