Split’s old town is a Roman emperor’s retirement palace that people moved into 1,400 years ago and never left. This self-guided walking tour traces how a temple became a baptistery, a mausoleum became a cathedral and a guards’ corridor became a chapel, through the essential sights of Split. Everything runs from your phone. You get a clear map of all 10 stops, simple directions through Google Maps, and a short audio story with an interactive quiz at each location. The route runs from Republic Square to the Pazar market, passing the Riva, the Temple of Jupiter, the Peristyle, the Cathedral of Saint Domnius, the Golden Gate and the statue of Gregory of Nin, and goes past all four Roman gates. The walk itself is free; the cathedral, bell tower, Temple of Jupiter and palace cellars have paid entry if you want to go inside. Start anytime, pause whenever you like, and explore freely. No groups, no schedules. Audio and text available in 7 languages. And it comes with a free eSIM, redeemable once per account, so your map, directions and audio work from the moment you arrive, with no roaming charges.