X
Comments to #1
All comments (4)
3
1.
Flick 4 year s ago
Great stuff! 
You guys are pretty informative. 
Keep 'em coming! 
Thanks 
You guys are pretty informative. Keep 'em coming! Thanks
0
2.
Sydney 4 year s ago
#20 Maybe someone was pouring old oil or paint down that drain. Could easily see something like that eating the resin away.
2
3.
Lea 4 year s ago
If you're in Seattle and see groups of #1 it is letting light into the old Seattle underground tour.
0
4.
Katelyn 4 year s ago
#11 this could also be a wireless data link between distant buildings. There's probably a similar unit within line of sight.
"What are these? found on a sidewalk, they’re made of glass, no lights inside. just an arrow"
A: "Skylights for the basement of the building they are in front of"
3
1.
Flick 4 year s ago
Great stuff! You guys are pretty informative. Keep 'em coming! Thanks
You guys are pretty informative. Keep 'em coming! Thanks
0
2.
Sydney 4 year s ago
#20 Maybe someone was pouring old oil or paint down that drain. Could easily see something like that eating the resin away.
2
3.
Lea 4 year s ago
If you're in Seattle and see groups of #1 it is letting light into the old Seattle underground tour.
0
4.
Katelyn 4 year s ago
#11 this could also be a wireless data link between distant buildings. There's probably a similar unit within line of sight.