The compact Old City lies between Adana Bulvarı and Hal Caddesi. It includes a wonderful 60m-long stretch of Roman road and a labyrinth of alleyways hemmed by historical Tarsus houses, many crumbling, but one now housing the Konak Efsus boutique hotel.
Just southeast are several historic mosques, including the Eski Cami (Old Mosque), a medieval structure that was originally a church dedicated to St Paul. Adjacent looms the barely recognisable brickwork of a huge old Roman bath.
Across Atatürk Caddesi is the late-19th-century Makam Camii (Official Mosque), and to the east is believed to be the tomb of the Prophet Daniel. To the west is the 16th-century Ulu Cami (Great Mosque), sporting a curious 19th-century minaret moonlighting as a clock tower. Next door is the 19th-century Kırkkaşık Bedesten (Forty Spoons Market), still used as a covered bazaar.