A very interesting web site called “magiccityistanbul,” that focuses on Istanbul, has just came to my attention. It treats historical, cultural, religious, and practical matters (riding in a taxi, useful telephone numbers for example—but some [one?] like the “Museum Pass” have special stipulations [be careful]). The pictures and the commentary are very informative.
Most (all?) of the entries that I have checked are dated “December”—so it looks to me that this site is relatively new. Just click on the Thumb Nails and enjoy.