Legionary Fortresses of the Roman Empire

• Castra was a Roman Camp, Marching Camp or Fortress, whereas a Castellum was a Roman Fort. These are the definitions that are followed by Classical Scholars.
• The Roman Fort could be either a square or a rectangle and was divided into four equal divisions by two intersecting roads. It was surrounded by four walls with gates and a defensive ditch.

The Fortresses

• Britain:
  • Caerleon, Chester, York, Inchtuthil Legionary Fortress
• Italy:
  • Castra Praetoria, Rome
• Spain:
  • Leon
• The Rhine:
  • Xanten, Cologne, Bonn, Mainz, Neuss, Xanten, Strasbourg, Windisch, Regensburg, Augsburg.
• The Danube:
  • Vienna, Petronell-Carnuntum, Szony, Budapest, Sirmium, Kistanje, Belgrade, Viminacium, Troesmis, Castra Potaissa, Apulum
• The Crimea:
  • Charax
• Turkey:
  • Melitene, Satala
• Syria
  • Raphanae, Cyrrhus, Zeugma, Samosata, Apamea
• Israel:
  • Jerusalem
• Jordan:
  • Petra, Bostra
• Algeria/ Tunisia:
  • Lambaesis
• Egypt:
  • Alexandria, Fort Babylon