SecureTeam10 discusses there various towers found on the moons surface in many various sources. One of them being at least 4.8km tall according to Google Moon Map Ruler. Awesome just thinking about it. What in hell or high water could make such incredible towers? Aliens of course. Such towers would be needed when you have a ship so big that it cannot land, but needs to dock to unload people and cargo.
Scott C. Waring