The Tower of the Americas is a 750-foot observation tower-restaurant located in the Hemisfair district in the southeastern portion of Downtown San Antonio, Texas, United States. The tower was designed by San Antonio architect O'Neil Ford and was built as the theme structure of the 1968 World's Fair, HemisFair '68. Originally known as 'HemisFair Tower', it was ultimately named 'the Tower of the Americas' as a result of a name-the-tower contest created by the executive committee.