Inset in the lower piazza’s towering wall are bas reliefs of three Italian cultural figures: Giuseppe Fortunino Francesco Verdi 1813-1901 One of the most influential operatic composers of the 19th Century. Leonardo di ser Piero da Vinci 1452-1519 Renaissance polymath: anatomist, architect, botanist, cartographer, engineer, geologist, inventor, mathematician, musician, painter, scientist, sculptor, and writer. Guglielmo Marconi 1874-1937 Inventor known particularly for developing many very important things.