Underground city: Measuring 2,000 meters, the Odessa catacombs are so vast and complicated, tourists are advised not to enter without a qualified guide.
Pavlo Fedykovych
Unconnected caves: Unlike the catacombs of Paris and Rome, these underground passages were never used to bury the dead.
Pavlo Fedykovych
Sinister sights: A decaying, anti-nuclear Cold War bunker is situated in the urban labyrinth, the narrow pathways of the catacombs its foundation.
Pavlo Fedykovych
Extensive maze: Inside is a chaotic system of unconnected caves and abandoned quarries or tunnels.
Pavlo Fedykovych
Nuclear shelter: The entrance to the bunker is almost as creepy as the inside.
Pavlo Fedykovych
Preserved items: Several left over gas masks form part of the eerie display.
Pavlo Fedykovych
Deserted articles: A rotting engine can also be found inside the bunker.
Pavlo Fedykovych
Drowned pathway: Some sections are almost completely submerged in water.
Pavlo Fedykovych
Still waters: One of several underground lakes located in the labyrinth-like network of tunnels.
Pavlo Fedykovych
Hidden spaces: A makeshift restaurant positioned deep in the tunnels, which are spread over three levels.
Pavlo Fedykovych
Mysterious world: The catacombs reach a depth of 200 feet below sea level.
Pavlo Fedykovych
Buried exhibition: A display of instruments used for stone mining, as well as various Soviet memorabilia.
Pavlo Fedykovych
Extensive maze: It's a chaotic system of unconnected caves and abandoned quarries or tunnels.
Pavlo Fedykovych
Major gateway: One of at least 1,000 entrances to the catacombs, the Moldavanka section is part of the Secrets of Underground Odessa museum.
Pavlo Fedykovych
Memorable attraction: Odessa is most known for sights like the National Academic Theater of Opera and Ballet, but locals hope the catacombs will one day get the same level recognition.