90 secs World Capitals: by Capital City directly West
To make a Capital City appear, type one that is West of it (but isn't more than 10,000 km away)
When you the type a capital city, any other ones that are reached by following a bearing between 60º and 120º, and is at most 10,000 km away, will appear, too
Capital cities that need to be typed in directly are highlighted
There's one city that will make 82 capitals appear