Heptapyrgion (Yedi Kule)

The Heptapyrgion, also known as Yedi Kule, is a historic fortress situated at the highest point of Thessaloniki's acropolis. Built during the Byzantine era and later expanded by the Ottomans, it served as a military stronghold and later as a notorious prison until the 1980s. Today, it stands as a monument of Thessaloniki's rich history, offering panoramic views of the city. The fortress is a remarkable example of Byzantine military architecture and holds significant historical value due to its role throughout various periods.