Heptapyrgion

Background

The Heptapyrgion (Medieval Greek: Ἑπταπύργιον [eptaˈpirʝion]), modern Eptapyrgio (Greek: Επταπύργιο [eptaˈpirʝio]), also popularly known by its Ottoman Turkish name Yedi Kule (یدی قله yedikulle; Γεντί Κουλέ), is a Byzantine and Ottoman-era fortress situated on the north-eastern corner of the Acropolis of Thessaloniki in Greece. Despite its name, which in both languages means "Fortress of Seven Towers", it features ten, and was probably named after the Yedikule Fortress in Constantinople (modern Istanbul, Turkey). It served as the major redoubt of the city's acropolis, as well as the seat of its garrison commander in Ottoman times, until the late 19th century. It was then converted to a prison (Φυλακές Επταπυργίου), which remained open until 1989. References to the infamous Yedi Kule prison abound in the Greek rebetika songs.

Source: Wikipedia article lead, CC-BY-SA.

Same country, matched on type + security level where possible.

• Anafi Island concentration camp
  Concentration camp
• Sophronistiko Katastema Khalkidas (Phulakes)
• Former Medrese in the Ancient Roman Agora
• Phulakes Malandrinou
• Phulakes Larisas
• Prison of Agios Stefanos, Achaea

Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.

World Prisons. (2026). Heptapyrgion. Retrieved October 20, 2026, from https://worldprisons.com/prisons/heptapyrgion

"Heptapyrgion." World Prisons. Accessed October 20, 2026. https://worldprisons.com/prisons/heptapyrgion.

@misc{worldprisons-heptapyrgion,
  author = {{World Prisons}},
  title = {Heptapyrgion},
  year = {2026},
  url = {https://worldprisons.com/prisons/heptapyrgion},
  urldate = {2026-10-20}
}