Oops! The episode is no longer available but you can find other episodes below.Back to National Geographic: HighlightsWatch National Geographic: Highlights Episodes Onlineplay_circle_filledThe open road, a father, a son—and the memories they’re still making. #ChrisHemsworthRoadTripplay_circle_filledMt. Katmai had the most powerful eruption of the 20th century 🌋 #NationalParksUSAplay_circle_filledExploring Lost Treasures & Tombs Around the Globe | MEGA EPISODE SPECIAL | National GeographicmoreWATCH IN APPplay_circle_filledchevron_leftchevron_rightComments