funny@lemmus.org to Ask Lemmy@lemmy.world · 1 year agoWhy is such a tunnel needed?media.mas.toimagemessage-square125fedilinkarrow-up1748arrow-down146file-text
arrow-up1702arrow-down1imageWhy is such a tunnel needed?media.mas.tofunny@lemmus.org to Ask Lemmy@lemmy.world · 1 year agomessage-square125fedilinkfile-text
I found such a photo on the Internet and became interested in what function such a structure could perform.
soon.