As San Antonio embarks upon yet another reimagining of downtown’s Hemisfair, it’s worth remembering the origin of the downtown space that includes the Tower of the Americas and other landmarks. The development arose out of the controversial and city-altering Hemisfair ’68, San Antonio’s World’s Fair and, in many ways, our introduction to the larger world. While Hemisfair was viewed as a win for the city’s business establishment, a now-forgotten pavilion operating under the World’s Fair banner that was anything but establishment — especially for the time.