Hi Merzof

Thanks for adding a lot of mosques (my special interest). 

It's very annoying to me that building=mosque doesn't mean mosque. Instead it means "building built as a mosque, possibly with stereotypical mosquey features".

To indicate a place where Muslims can pray, the tags
amenity=place_of_worship and
religion=muslim
are needed.

Sometimes this amenity is found in a building=mosque, but often (in the UK) it's in a building=commercial or even in a building=church (because building= indicates what the building was originally built for.)

Despite this, there are a *lot* of mosques in the UK that are tagged building=mosque but not amenity=place_of_worship and at some point I hope to do a bulk edit. 

Here on Ross Street, it looks like the new building on the corner with Werneth Hall Road should be building=mosque, but the older one at no 11 should probably be building=yes? 

I added amenity and religion tags to the new building yesterday, but didn't see no 11.

If you can add the amenity= and religion= tags when you find a mosque this would be very helpful!

Happy mapping,

eteb3