- How tall was Genghis Khan?
- Which civilization was most brutal?
- Who has conquered the most land in history?
- Which empire killed the most?
- What was the most feared empire?
- Who was first king of world?
- Who ruled the world the longest?
- Who is the greatest emperor of all time?
- Who defeated the Roman Empire?
- What was the worst empire in history?
- What was the most powerful ancient empire?
How tall was Genghis Khan?