At first sight very clean and well structured site.
What you need:
1. Put a privacy policy. Even if it is a standard one, Google will love it more, and anyway it is against Adsense TOS to not have one.
2. Ad placement is very bad. Not that it bothers users like me, I think the CTR is quite low too (the ones in the header, the rest are ok).
3. The about page. A typical internet user would want to find something else than the CIA World Factbook page, in the same format with the same map. It is a very well known format, and I, as a user would love to find something different on a site that through its domain name has such authority.
4. Under Weather get a feed, something that will show the current weather. Again, as an internet user who would like to visit Sierra Leone (hey, I might want), I would love to see the current weather not the general one (though it is good to have that info).
Overall, one more thing: When I enter the homepage, it looks like a news page. But entering its content it looks more like an information site / travel guide. I know it is unfinished, but you should concentrate what do you want to give your users.
Overall one of the cleanest sites I saw lately, with pleasant colors and a nice structure. Congrats on your work.
