museum of partisan glory hideout of the soviet partisans of the second world war, located inside the odessa catacombs

catacombs bunker museum partisan glory soviet ukraine war odessa resistance underground symbol flag history military memorial revolution oppression union tunnel corridor artificial inside interior cave cavern trip architecture earth grave horror lamp bomb extremal tourism entrance explore abandoned mystery walk fear shadow sad memory candle tragedy radio oxygen soldier helmet destruction nerubayske hideout partisans second world located network tunnels beneath city ukrain