This 2015 episode examines that humans have always longed to explore underwater, but need to breathe air. From as far back as the 4th century B.C.E., clever inventors have been designing technology to give us face time with the creatures of the sea.
Stuff You Missed in History Class
2,609 clip(s)
Behind the Scenes Minis: Mountains and Glaciers
Walter Harper and the Summiting of Denali, Part 2
Walter Harper and the Summiting of Denali, Part 1