The Turks are good people and their architecture is truly incredible. This upper photo, I took of the New Mosque in Ankara. It's Huge and quite beautiful, and brand new. The symmetry and rise of the minarets is pleasing. It looks like the Mother Mosque of the New Mosque in Chechnya. You could spend an eternity in Turkey examining architectural details, and an additional benefit that Mosques can be a dozen degrees cooler inside than in the searing heat of the open sun.
This lower photo is of Ayasofya in Istanbul. This building was originally a Byzantine Cathedral, Later a Mosque, now a museum. Some of the more unusual and "common" mosques can be very compelling as well. One of the most interesting was a Mosque within a chemical factory.