Before going to the recent HESS collaboration meeting, I’ve spend a day and night in Copenhagen. Beautiful city, it’s worth going there one time!
Apart from the little mermaid statue (Named after Hans Christian Anderson’s fairy tale) I was really impressed about the city metro. Why? Because there is no driver!
City-Metro. No driver
“The entire metro system and the trains are run by a fully automated computer system, located at the Control and Maintenance Center south of Vestamanger Station” Wikipedia