BBC地平线系列:地心
ForcenturieswehavedreamtofreachingthecentreoftheEarth.Nowscientistsareuncoveringabizarreandalienworldthatlies4,000milesbeneathourfeet,unlikeanythingweknowonthesurface.Itisaplanetburiedwithintheplanetweknow,wherestormsragewithinaseaofwhite-hotmetalandagiantforestofcrystalsmakeupametalcorethesizeoftheMoon. Horiz...
