At the entrance of the Bosporus from the Black Sea in the Anatolian coast you can see a fortress at the top of a hill.This is an old military fortification which among people is known as Yoros Kalesi or mostly known as Ceneviz Kalesi and it is made so that the entrance to the Bosporus could be controlled.According a newspaper news released in February,the fortress which took control over the Anadolu Kavagi will be transformed into a cultural centre.We dont know what is the procentage of truth in this plan.But we will pass through this topic at the end of our article to see whether is good or no.

The name of the fortress Yoros is supposed to be taken from the greek world Oros,which means mountain,peak.

But accordıng to one of the most widely spread comments it is known that it is a worship made for the God of the "good winds" Zeus to help all the boats to be able to enter the dangerous waters of Black Sea safetily.
It is accepted that Ayas and Uros passed in the common language as Yoros.