The Pyramids of Queens: There are 3 smaller pyramids that are located adjacent to Khufu's pyramid. These 3 pyramids are full of mystery since it is uncertain who they were built for, though it is believed that they were built for different Queens and perhaps even the pharaoh's mother.
Here is some additional information about the three Queens' Pyramids that you might find interesting: Pyramids of Queens
This challenge is unique because, unlike the other challenges, which each resemble a single pyramid, this one resembles 3 pyramids. In other words, although the cumulative distance is shorter than the other challenges, participants in this challenge will hit their peak distance on 3 separate occasions. The total distance for this challenge is 106km for the month.