1. Catacombs of OdessaNerubayskoye The Odessa Catacombs are a labyrinth-like network of tunnels located under the city of Odessa and its outskirts in Ukraine, that are mostly the result of stone mining, particularly coquina. The system of Odessa Catacombs includes such underground structures like basements, bunkers, drainage tunnels and other storm drains as well as natural caves. The Catacombs are on three levels and reach a depth of 60 metres below sea level. It is one of the world's largest labyrinth running up to 2,500 kilometers.In the 19th-century, most houses in Odessa were built of limestone that was mined nearby. These mines were abandoned and later used, and widened, by local smugglers, creating a labyrinth of underground tunnels beneath Odessa. From Wikipedia, the free encyclopedia.
5. Akkerman FortressBilhorod Dnistrovskyi Bilhorod-Dnistrovskyi , formerly known as Akkerman , is a city and port situated on the right bank of the Dniester Liman in Odessa Oblast of southwestern Ukraine, in the historical region of Bessarabia. Administratively, Bilhorod-Dnistrovskyi is incorporated as a town of oblast significance. It also serves as the administrative center of Bilhorod-Dnistrovskyi Raion, one of twenty-six districts of Odessa Oblast, though it is not a part of the district. It is a location of a big freight seaport. Population: 50,086 From Wikipedia, the free encyclopedia.
6. Tyras RuinsBilhorod Dnistrovskyi Tyras was an ancient Greek city on the northern coast of the Black Sea. It was founded by colonists from Miletus, probably about 600 BC. The city was situated some 10 km from the mouth of the Tyras River, which is now called the Dniester. The surrounding native tribe was called the Tyragetae. The ruins of Tyras are now located in the modern city of Bilhorod-Dnistrovskyi in the Odessa Oblast of Ukraine. From Wikipedia, the free encyclopedia.
7. Berezan IslandOchakiv Berezan is an island in the Black Sea at the entrance of the Dnieper-Bug Estuary, Ochakiv Raion, Mykolaiv Oblast, Ukraine. It is often being confused with the artificial island of Pervomaisky that is located within Dnieper-Bug Estuary. The Berezan island measures approximately 900 metres in length by 320 metres in width. It is separated from the mainland by about a mile and a half of shallow water. From Wikipedia, the free encyclopedia.