Perugia has a walkway with a story beneath every step: its medieval aqueduct. Construction began in 1254, and by around 1280, the aqueduct was carrying water from Monte Pacciano to the Fontana Maggiore in the city centre. The clever bit? Engineers found a way to make the water flow uphill. Using a pressurised conduit, the system overcame the city's steep terrain—an impressive feat of medieval engineering.

The aqueduct was eventually decommissioned in 1835, but its final urban section found a new lease of life. Today, it forms a pedestrian walkway above the rooftops, connecting the Porta Sant'Angelo district with Perugia's historic centre. Stone arches, railings and glimpses of courtyards add plenty of character to the route. It may no longer carry water, but this centuries-old structure still knows how to make a stroll memorable—one step and rooftop view at a time.