Presiding with stately grace over the clutter of bars and souvenir shops below is Alanya's awesome Seljuk-era castle with views across the city and out to the Pamphylian plain and Cilician mountains.
Right at the top of the castle area is the İç Kale (inner fortress). Within are plentiful (though poorly preserved) ruins including a half-dozen cisterns and the shell of an 11th-century Byzantine church.
The road to the fortress winds uphill for 3.5km. Catch a bus from Hürriyet Meydanı (₺1.25, hourly from 9am to 7pm) or opposite the tourist office (15 minutes past the hour and, in summer, also 15 minutes before the hour). Taxis are around ₺15.