We only put sections in once we've got plenty of content to make them interesting. If we haven't got the info, or the videos or photos aren't available for a section, we leave it out so that you can just pass on through to the bits with the interesting stuff.
The other possible reason is that the area is too wide. If you're on a continent, for example, the area is too big for the info and images to be much use, so we break that down into countries and places which you can click through to and find more specific content.
If you find a page like this and it doesn't go anywhere, please let us know.
ridingboards.com is very new and we have lots of ideas that we haven't had time to include on the site yet