Visit the mysterious underground world of Odessa Catacombs on a 2.5-hour private guided tour. The labyrinths of the Catacombs are spread for about 1550 miles (2500 km) under the city of Odessa and its surroundings. Many pages of Odessa's history are connected with the Catacombs. It used to be limestone quarries, a place where the smugglers sold their goods, and a hiding place during the World War II. Nowadays, it is a famous attraction and...