If you'd like to experience the colorful past of your new surroundings, make sure you check out Tomb of Galerius.
Thessaloniki City Centre is where you'll find Tomb of Galerius. It's free to enter, which means you'll have more cash in your pocket to explore! Other worthwhile attractions near the historic landmark include White Tower of Thessaloniki, Aristotelous Square and Arch of Galerius.