My 3 month internship in Cupertino as part of the iCloud Design Team.
I was fortunate enough to spent the summer of 2011 in California to work with the iCloud Design team.
It was a really special opportunity for me as I was a huge Apple fanboy back then and it helped me solidify my interest in pursuing a career as a UI Designer. The whole experience really helped me to grow as a person as well as on a professional level and a designer.
These days I still like and use a bunch of Apple products even though I wouldn't consider myself a fanboy anymore.