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- 13497 1600x1200 tunnel, underground, dark
- 13236 1600x1200 escalator, underground, staircase
- 10555 1600x1200 metro, underground, long exposure
- 9723 1600x1200 tunnel, underground, dark
- 8961 1600x1200 tunnel, underground, direction
- 6118 1600x1200 parking, underground, light
- 132974 1600x1200 train, subway, underground
- 27555 1600x1200 tunnel, light, underground
- 20362 1600x1200 train, railway, underground
- 16062 1600x1200 subway, station, underground