This isn't really bicycle related, but it is quality of life related.
Denver used to have a trolley system that ran on electricity. Apparently, General Motors may-or-may-not-have purchased the rails and trolleys and removed them promptly.
This is how the map looked.
It is WAY more coverage than our current lightrail system.
We should bring this back. We just need a plan...
and several billion dollars (that the city has).