Geology - the former colonial name kind of gives away the big attraction of the place in the days of Empire.
First sub-Saharan country to gain its independence, which happened in 1957. Typically, this resulted in increased poverty and a dodgy fucker getting in power. He was overthrown by a CIA coup and Flt. Lt Jerry Rawlings became President. He immediately proceeded to ban all political parties - sounds like an ARRSE coup to me (although no Flt. Lt would be put in power by ARRSE, that's for sure).
Ghana is now reasonably democratic and is apparently ranked as the "least failed state in Africa". Talk about damning with faint praise.