The mosque of Rüstem Paşa is one of my favourites, if only for the marvellous tiles that you can see here. I show them on several places on my site, this is just one of them. The mosque is not too far from the Egyptian Bazar, but though many tourists find their way there they will almost inevitably enter the New Mosque near it, rather than walk a bit further to the West and locate the Rüstem Paşa, which is smaller, but has tiles that are way beyond what you can see at the New Mosque.