This was laugh out loud funny.
Brilliant. Apparently some 200 mosques in Mecca (Islam's holiest city) point the wrong way to pray.
And according to the BBC: "Some worshippers are said to be anxious about the validity of their prayers."
If you are one of those unfortunate theists, then let me assure you that you are indeed going to Hell! Ignorance is not an excuse in the eyes of your god as you quite clearly did not perform your sacred duties!
Further clarification can be seen in this helpful website below. :-)
Shame. Looks like they have been wasting their time praying... oh the irony!