Peaceful and active 16th-century Ottoman mosque in Saraçhane park, Fatih district. You can't miss it if you're here to see the Valens Aqueduct. It is most notable for its spiral minaret. Built in 1550 on behalf of Emin Nuretti Efendi, qadi 'asker of Egypt, it is named for its spiraling (burmalı) brick minaret, a copy of a Seljuq design that is unique in Istanbul. The mosque is not domed, but has a pitched porch, which rests on four reused Byzantine Corinthian stone columns. Unusually, the entrance is off-center behind a column. You can meet some nice cats here. read more