I need some geo/terr questions?

I need to come up with a few questions that have something to do with words that have the root geo or terr in them such as 'What famous subterranian tourist site is in new Mexico?'or 'How did the Ancient Egyptians use geometry?' some of the words are:geocentric, Mediterranean, interred, geography, geology, geographic, terrain, geode, (you get the Idea) Thanks so much!