In eastern Turkey there is a great variety of areas, with deserts and mountains and forests and lakes. Take for instance Lake Van, gorgeous and ringed by mountain peaks. I visited there on my 2014 Come See Turkey trip. We took a ferry boat out on the lake to Aghtamar Island, where once lived kings of Armenia and Vaspurakan. Now there's not much remaining beyond the lovely Cathedral of the Holy Cross.
See all my Turkish posts.