Travel tips for Ghana/West Africa?

I've been slowly convincing myself that I want to go to Africa, mostly because I haven't done a solo trip in a while, but also because I haven't been to Africa at all yet! Some of my team members are in Ghana and they sent me pictures of it, and it looked amazing. I definitely would love to go! I'm thinking of going during the week of Christmas only because it's probably my only time I'm available for the rest of the year. Any tips or places that I should be looking at?

(I also have some Scandinavian countries, Prague, or Scotland/Ireland on my docket, but I've been to Europe so much these last couple of years and I figure I'd need something new)