A very vast expanse of land endowed with a diversity of treasures.
You will need more than a week to visit the entire region.
Anatolia is a vast region, equivalent to the whole of Turkey minus the tiny European and Kurdish areas to the West. This expanse of land is mostly mountainous; nevertheless, you will see a variety of landscapes. The Northern region, rather green and humid, also has the Black Sea. The Centre is rather volcanic, while the Mediteranean coast is in the Southern region.
I really like this region, and in my opinion, it holds several cities of interest. It is, however, difficult to draw up a complete list, considering the vastness of the area. For instance, I can tell you about the inevitable city of Istanbul and its gigantic mosques; Izmir, which is near Ephesus, the famous ancient city; Bodrum, a seaside resort; Antalya and its old town...
As for tourist attractions, there are many in Anatolia, as Turkey also has a wealth of history. Here and there, you will find reminders of antiquity: Greco-Roman remains as well Pamukkale's hot springs or Cappadocia's volcanic landscape, unique in the world.