Thank you so much for the comment and resteem.
I think the official shape of the earth is that it's not a perfect golf ball. That it's slightly oval, very little and also given the dimension we barely noticed it.
I guess many, many people have been to Antartica.
Not sure about percentages, but there is a lot of "open space" underground. All the caves that we know of... it's insane. Catacombs system benight many capitals. Ancient CITIES... and contemporary ones actually. One that it's not very known is in Manchester. There is an enormous underground city there... and the official "Posture" of the mayor is that it doesn't exist. heheh That's a fun one.
Not so sure about the ice wall either... you can go around the poles, boats have done it. That documentary is fun, it shows all the experiments the flat earthers actually made, are a fiasco... and they can't accept it.
RE: Behind the Curve ... ( A look at the flat earth community)