Surprise cards from Austria!

Ever since my dad told some of his co-workers that I collect postcards I sometimes receive great postcards when one of them went on vacation. This time I received these two cards from Austria!
Well, I don't know if they are are just nice people that they care to send mail to someone they don't know, or if they hope to gain something by doing so (as in favours from my dad) ... well whatever their reason is I always enjoy getting those surprise postcards :D