In your fictional world, is travelling encouraged to "broaden the mind" or is it viewed with suspicion? Can anyone travel or are only the rich allowed to do so? What form does your world's transportation take and is it accessible to all?
Does your world have any belief in or acceptance of any other universe/world? Does it attempt to communicate? Are those permitted to travel allowed to share their experiences? What happens to those who defy any restrictions on travel (and I would find it hard to imagine someone not defying these rules)?
Travelling can be fun but is it easy to do in your fictional world and what are the consequences of it?