Urban Tech Links: UTL
UTL is about exploring past, present and future urban technologies in science and fiction, etc...
Monday, January 29, 2018
Double-deck_and_multipurpose_tunnels
https://en.wikipedia.org/wiki/Tunnel#Double-deck_and_multipurpose_tunnels
https://structurae.net/structures/tunnels-caverns-and-shafts
Newer Post
Older Post
Home