The Great Mosque of Cordoba!!

I wanna know from all of you the useful stuff about The Great Mosque of Cordoba for exploring and enjoying a good time there. I have a plan for going there after coming back from niagara falls trip from boston with my mates for my good experience. I am waiting for your quick replies.

I have no much idea about this The Great Mosque of Cordoba but heard about it's from visitors. This is a grand building which decor in a modern way and this is a peaceful place. I think you should be there and so sure will have fun there.