Wow, two days, really? So how do you spend your given leave?
Yeah you'd be right to allocate a bit of time if you're paying a good bit for flights, but taken a two week holiday and going to Europe should certainly be priorities!
Obviously, I'm biased, but Europe must be visited

If you like museums and history, obviously London, Paris, Berlin are all there. However staying in one of those places will place you very far from the Med (Although you can get a fast enough train from any of those places to the Med coast).
I just got back from a school trip to Catalonia, and as a nation on the Med and containing Barcelona it has he best of both worlds tbh. You'll get away with no English better than you would in France, too. Great history and museums, also some super architecture and city planning in Bar