Myth or reality ? // Μύθος ή πραγματικότητα ?

http://www.voyagehollowearth.com                      /hollow_earth_trip_info.html  Note: For those who like science fiction. Read the book below :

http://www.ourhollowearth.com/SGContents.htm

    THE HOLLOW EARTH


According to the Hollow Earth hypothesis, the planet Earth is either wholly hollow or otherwise contains a substantial interior space. (Wikipedia)
Admiral Richard E. Byrd of the United States Navy flew to the North Pole in 1926 and over the South Pole in 1929.
About the North Pole he wrote: "I'd like to see that land beyond the North Pole, it is the Center of the Great Unknown."