Exploring Great Zimbabwe is in the Top 5 things to do in Zimbabwe. Did you know it is the second largest ancient structure in Africa after the Pyramids in Egypt- So it should be on your bucket list of things to see in Africa. The day tour is 10 hours long, as it takes a while to get there and back. You will have 4 hours roughly explore the ruins with a guide. By the time you leave, you will know more about the ancient cultures of Southern Africa, and how they were developed hundreds of years ago.