In the Ada Neighborhood of Sinop, there are 3,000-year-old tunnels believed to be the tomb of King Mitridat and the cave called 'Seven Wells'. It is estimated that the tunnels, which were known to have been built in order to protect against wars in ancient times and were approximately 2.5 meters in height and half meters in width, are 10 kilometers long and have many exits. Tunnels that go in different directions under the city are wanted to be discovered and brought into tourism. Journalist Deniz Özen entered the tunnels and'TUNNELS HAVE NO COMMON ACCOUNT' Researcher Historian Cemallettin Kaya stated that there are many tunnels in a city that was the capital city of Anatolia, and said that these tunnels came across them in the excavation areas. Stating that there are Yedi Kuyular Cave in Sinop's Ada location, Kaya said, 'It is necessary to enter this cave and conduct research. The tunnels coming out of the basalt rocks of Sinop have no limits. There are tunnels descending from the Balatlar Church to the two ports opening to the right and left. I personally saw the tunnels under Sakarya Street. There are tunnels when you enter through the priest's house. These tunnels must be entered by tube. There are many tunnels that need to be discovered under the city, he said. 'WORLD COMES TO SINOP TO SEE THE TUNNELS' Saying that the most valuable place of the Black Sea is the only beach facing south, Kaya said, "We need to evaluate and plan this gold necklace. It should be made in a way that will be sustainable and maintainable in a way that will bring the most income. Sinop's economy will ceiling if it can be planned properly and opened to tourism. He came to Sinop to see his graves and tunnels. The world is in love with Mitridat. The world is known as Mitridat Diogenes. Haydar Aydurmuş, one of the residents of the city, stated that they listened to the tunnels from their elders and said, "We would say that the tunnel had gone to Akliman , but we do not know exactly." Bahri Kayıkçıoğlu said, "Many times, Sinop is besieged, captured and knows the history of Sinop. It is known that there are hidden passageways towards Akliman. There are other alternatives." Münir Dinçer said, "We have a territory called seven wells. The name comes from there as well. We entered there. As we progressed, oxygen decreased, we had to go back when our breathing narrowed. It was said that those tunnels came out of Akliman, but nobody knows whether there is such a thing. There is a tunnel but there is no oxygen, there may be ventilation shafts, but it may be blind in time. " WHO IS MİDRİDAT? As the king of Pontus, BC in Anatolia. 120-BC. He ruled in 63 years. He was considered the most successful and intelligent enemy against the Roman Republic. He developed various poisons at a young age because his mother wanted to poison himself. He is the first person to use biological weapons in history. He made his enemies die by adding poisons he made to his meals.