As you continue along Avenida de Mayo, you will encounter Palacio Barolo. The 22 story Art Nouveau building seems a modest height by today’s standards. Yet its 330 feet qualified as the tallest in South America when it was finished in 1923. Even more noteworthy is architect Mario Palanti’s explanation of the design. His inspiration was the Divine Comedy written by Dante Alighieri in the early 14th century. The basement represents hell. The next 15 floors symbolize purgatory. The upper levels signify heaven. The top implies the nine choirs of angels.