Bridges
From KGB Wiki
Bridges are these sort of, well, you know, spanish things that, no, not Spanish, they're span-ish things, they span things. Well, anyhow. They let you go from one place to another without having to much about with valleys and rivers and the like in between.
Bridges are one of the four Pittsburgh Elements. Famous or important example include the Brooklyn Bridge, the bridges between CMU and University of Pittsburgh, and Marlon Brando.