https://en.wikipedia.org/wiki/Hollow_Earth https://en.wikipedia.org/wiki/Hollow_Earth I'm shocked that anyone actually believes this in modern days, but it's a

https://en.wikipedia.org/wiki/Hollow_Earth https://en.wikipedia.org/wiki/Hollow_Earth I'm shocked that anyone actually believes this in modern days, but it's a fun thing to fantasize about. There is a fictional series about hollow earth called Pellucidar by Edgar Rice Burroughs that I enjoyed immensely. A fun read, not unlike Tarzan.