Soto created two installations: “Progresión amarilla” (Yellow Progression) and “Cubo virtual azul y negro” (Blue and Black Virtual Cube) for the Chacaíto subway station in Caracas.
The “Cubo virtual azul y negro” has been installed at the Luis Brión Square since 1983, next to the subway’s gate on top of “Progresión amarilla” located in the underground.