Show the number of days at each location in a route
The calendar functionality is a little thin. I don't have a recommendation for how exactly to improve it because it works very much like an Orbitz or Expedia calendar does, but it somehow doesn't feel enough.
What we ended up doing was buying an old fashioned paper calendar that we could write on to show exact duration of country stays. When people are planning a big trip like this one where each destination's duration is 25 days+, it is helpful to have a more visual tool to show that. Maybe there's some kind of color coding interactive tool...?