90 secs World Capitals: by Capital City directly East
To make a Capital City appear, type one that is East 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 240º and 300º, and is at most 10,000 km away, will appear, too
The one Capital city that needs to be typed in directly is highlighted
There's one city that will make 92 capitals appear