The hop-on hop-off sightseeing bus is an easy way to see the highlights of Thessaloniki at your own pace. The open-top route links the city’s main landmarks, from the White Tower and the seafront promenade to the Rotunda, the Arch of Galerius, the Roman Forum and the upper town, with audio commentary explaining what you pass. A ticket allows you to get on and off as you please throughout the day, making it a convenient and flexible option for first-time visitors wanting an overview.