In 1861, one man and a “gas bag” filled with hydrogen sparked America's obsession with going higher, farther, into the unknown.

The Horn That Divided the World Cup

Design is everywhere in our lives, perhaps most importantly in the places where we've just stopped noticing. 99% Invisible is a weekly exploration of the process and power of design and architecture. From award winning producer Roman Mars. Learn more at 99percentinvisible.org.