I am what you'd call a neophiliac and have many friends who enjoy doing/seeing/experiencing new things, be it through travel or interpersonal encounters. We always seem to struggle for a better way to just ask "Did something new happen to you, did you learn something new about another culture, did you discover new types of behavior or customs?", etc. Does anyone know a phrase for it or a word we could at least make up a question from?
"So, you've been traveling in Continent XX. Did you reach any enlightenment?"
"Anything enlightening in your recent travels?"
Enlighten: Give (someone) greater knowledge and understanding about a subject or situation
You might try "Did you broaden your horizons on that trip?"
Broaden one's horizons: Expand one's range of interests, activities, and knowledge.
As @FumbleFingers mentions in the comments, "did you expand your horizons on that trip?" isn't a bad option either.
Expand one's horizons: to experience and learn new things.
Here's one last one: "did you broaden your worldview on that trip?" (I wasn't able to find any source in a dictionary for that, but I've heard it thrown quite often in common speech, so here are some examples of news articles with that phrase in the title.