"Gateways: The Four Directions" by San Antonio artist Rolando Briseño is a colorful frieze of glass depicting historic doorways and architectural portals found throughout San Antonio. The artwork is located along the window bays of the concourse of the San Antonio International Airport. The project includes 43 total window treatments, each a unique building facade in San Antonio. The project includes a large terrazzo floor design that spans the entire terminal featuring medallion-shaped motifs inspired by Mesoamerican illustrations of the four cardinal directions.