Africa is filled with ancient ruins and historic sites. These can be found all over the continent, with the most notable and popular ones sitting in North and East Africa. Some of these places are very accessible. The famous pyramids at Giza, for example, are very popular, and virtually the entire tourist infrastructure in Egypt is geared towards making it as easy as possible to visit them. Other ancient sites, like Meroe in Sudan, are more difficult to reach, but are much less crowded and, according to many adventure-seekers who visit them, more authentic. Here are the most interesting ancient sites and ruins in the Northern half of Africa.