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  1. That's the Point!
  2. Tokyo Metro
  3. Blurred motion light trails in a train tunnel under the Huangpu river, Shanghai, China
  4. Graffiti-filled walls of the Krog Street Tunnel in Atlanta, Georgia
  5. In The Bowels Of The Mountain
  6. Blurred motion light trails in an train tunnel under the Huangpu river, Shanghai, China
  7. Italy, Campania, Napoli district, Naples, Underground site
  8. Green Line
  9. A dark wet underground hallway in decay
  10. Tunnel In Grand Canyon National Park, Arizona