Looking like something out of an English country village, this quintuple-arched bridge is Sancti Spíritus' signature sight. Built by the Spanish in 1815, it carries traffic across the Río Yayabo and is now a national monument. For the best view (and a mirror-like reflection) hit the outdoor terrace at the Taberna Yayabo.
It's flanked by cobblestone streets – the most arresting is narrow Calle Llano, where old ladies peddle live chickens door to door, and neighbors gossip noisily in front of pastel houses. Also worth a wander are Calle Guairo and Calle San Miguel.