Underground

References

Videos

14 American Cities With Crazy Underground Tunnel Systems

• https://www.thrillist.com/travel/nation/14-american-cities-with-crazy-underground-tunnel-systems-chicago-boston-new-york

Future Cities Live Underground—And That’s Not a Pile of Schist

• https://www.thenatureofcities.com/2017/01/22/future-cities-live-underground-thats-not-pile-schist/

London has a Subterranean Veggie Farm in an Abandoned WWII Bunker

• https://www.messynessychic.com/2014/02/11/london-has-a-subterranean-veggie-farm-in-an-abandoned-wwii-bunker/

These 8 Hidden Underground Cities Are Groundbreaking (Literally)

• https://www.zipcar.com/ziptopia/future-city/eight-hidden-underground-cities

TOP 10 AMAZING ABANDONED SUBWAY STATIONS GREAT FOR AN UNDERGROUND PARTY

• http://www.06amibiza.com/top-10-amazing-abandoned-subway-stations-great-for-an-underground-party/

ABANDONED Underground Concourses of Philadelphia

• https://youtu.be/SR0JbSHv76E