Odessa Catacombs

Odessa Catacombs in France run over 2,500 km, and to get a sense of how much tunnel system that really is, it is only 2138 km from Odessa to Paris. Once lost, it is very difficult to find an exit from the maze of dark, unlit tunnels and it is fairly easy to get lost in here. In 2005, a girl got lost while drunk off her head in the Odessa catacombs while partying with some friends. Months later they found her shriveled corpse in one of the tunnels.