Withthehelpofateamofexpertsandthelatestin3Dscanningtechnology,AlexanderArmstrong,alongwithDrMichaelScott,exploresthehiddenundergroundtreasuresthatmadeRomethepowerhouseoftheancientworld.Inhisfavouritecity,heuncoversalostsubterraneanworldthathelpedbuildandruntheworld'sfirstmetropolisanditsempire.　　Fromthesecretunderground..ccc