On http://users.belgacom.net/gc674645/pyramid/pyramid.htm and on a few other pages, they state that the Great Pyramid is on the longest “land-lines”. They mean that it lies at the intersection of a meridian (half a great circle on the geoid) and latitude parallel that each cross more land than any other meridian and parallel. I suspect this is wrong, and I’d like to investigate those statements.

Which meridian crosses the most land?
Which parallel crosses the most land?

I don't know how to solve these questions, so I posted here.


~~ Nehmo