I'm traveling through Europe right now and currently in Switzerland and heading off to Istanbul tomorrow to sample some Turkish rail. While in Basel Station, I was able to store my 27 inch suitcase in one of these for 9 CHF which is about $9 US. The rest of the family was able to put all 3 of theirs in one big locker. Its all coin operated and no need for human interaction. Are there any stations in the system that has something like this?