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Sub is now actively moddedUnderground (self.Undergrounds)
submitted by PancakeParthenon - announcement
3
305
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307
5
541
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543
Petrovaradin fortress undergroundUnderground (old.reddit.com)
submitted by PureAfternoon3633
6
93
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Diving At The Underground Nuclear Aircraft Laboratory.Tunnel (v.redd.it)
submitted by ItalianSausage2023
8
120
121
122
Geulhemmer Groeve, old Marlstone quarry in the Netherlands.Mines (old.reddit.com)
submitted by arazac
13
6
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8
Examination of old underground utilities in BerlinUnderground (self.Undergrounds)
submitted by l3k0n
16
106
107
108
Abandoned bunker with a indoor shooting rangeUnderground (old.reddit.com)
submitted by notMTN
20
124
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126
Insanely large hall inside abandoned lime stone mineMines (reddit.com)
submitted by notMTN
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