What mountainous topography spans the French-Italian border?
Names of the Albanians and Albania:  Linguists believe that the "alb" part in the root word originates from an Indo-European term for a type of mountainous topography, meaning "hill, mountain", also present in "Alps". Alps:  Mont Blanc spans the French–Italian border, and at 4810 m is the highest mountain in the Alps.
Mont Blanc