University of Cincinnati features an iconic tower designed by Machado Silvetti with Zahner-manufactured stainless steel. The monument acknowledges the contributions of the Sigma Sigma Fraternity. Machado Silvetti's design provides an apex which represents both the University and the Sigma Sigma fraternity. The tower has a number of symbolic aspects in its design. Its square base forms the letters U and C on alternating sides. Above these letters, the main wooden shafts rise in the form of hammers. These motifs reflect the fraternity's motto, "The torch burns; the hammers ring." At the top, a beam of light shines through a stylized stainless steel torch and changes colors through the use of a computer program.