https://en.wikipedia.org/wiki/Topography
data centers (where? how many?)
https://en.wikipedia.org/wiki/Internet_infrastructure
cellular data towers
terrestrial fiber optic
telephone poles
https://en.wikipedia.org/wiki/Internet_exchange_point
subsea cables
https://www.reddit.com/r/ITCareerQuestions/comments/12r5ttw/how_does_internet_infrastructure_work_around_the/
https://en.wikipedia.org/wiki/Internet_backbone
https://en.wikipedia.org/wiki/Network_topology
https://autonomy.work/portfolio/the-actually-existing-internet-network-topology/