Heh, I was just riding on a train from Hamburg to Frankfurt and passed Wuppertal, looked out the window and saw a suspended upside-down monorail cruising over a

Heh, I was just riding on a train from Hamburg to Frankfurt and passed Wuppertal, looked out the window and saw a suspended upside-down monorail cruising over a river. Googled for 5 minutes before finding this.