The real summit of Kilimanjaro, aka Kibo is a walk-up. However, Much of the time on Kilimanjaro, you are in sight of one of its lesser summits known as Mawenzi.http://www.camp4.com/photos/image_detail.php?image_id=461
Mawenzi looks like a full-on expedition.
Did you get to see any dikdik in Serengeti? While they are a bit odd of a creature, there's not much more fun than shouting dikdik out of your range rover!