Jump Between World Capitals: Closest Pair In Different Continent, Map

Start with the two capital cities that are closest together despite being in different continents). Then do the same for the remaining capitals. Keep going!
When you guess an answer, at the end of it you are shown the initial letter of the answer below it (the initials of the first pair are shown in heading row above it)

You are shown distance in km and 'rhombus' bearing going from the 'above' capital to the 'below' capital.
When you are left with capitals from just one continent the quiz is completed.