Actually, before its beautiful landscape, we remember the war in the history books, in 1473, between Ottoman Empire and Ak Koyunlu. The Battle of Otlukbeli was fought on August 11, 1473, in the east Anatolia. You can find historical details in wikipedia.
Monument of The Battle of Otlukbeli
Otlukbeli isa town in city, Erzincan in the east part of my country. The distance to the city is 142 km. There is a lake there, it is described as a natural monument due to the formation of the lake and its features. It is a traverten lake, scientists say that it is unprecedented lake because of its formation. These travertines are not a normal karstic source, but a set of travertines created by mineral waters. So the lake is a unique lake around the world. The lake formation provides some minerals coming from along the faults. And it is a red waters because of all these minerals.