Turkish shawarma in Istanbul Turkey
Kebab is traditionally meat grilled on a skewer. In the west we regularly make these, Shish Kebab. The large blocks of meat you see around the world are Gyro, Shwarama, and Doner. The original was invented by Iskender Effendi, in Turkey, and was Doner. Since the translation is "rotating meat" all of these ARE Doner. It was later introduced in Greece where the meat and spices changed a bit. Thus becoming Gyro (which is greek for "turn"). NOTE: If it has Tzatziki sauce then it's a Gyro. Shwarama is Arabic for the same dish. So Gyro, Shwarama, and Doner are essentially the same thing.