The Castello Euralio (the name comes from a Greek word, eyryélos, which means "shaped like a nail") of Syracuse is the largest castle dating back to Greek times that survives until the present day and one of the most important Greek monuments in Sicily.  

Castles, as one knows, are created for fortification during war, and as soon as the opportunity presents itself they are razed to the ground either during or after a war. In spite of this, thanks to the fact that a large part of this building was dug directly into the rock, part of the structure of this particular castle survives (a case more unique than rare). The castle is impressive in size despite two and a half millennia having passed since its construction and despite the hardships it endured: of the wall’s original height of 8-10 meters / 26-32 feet,  today their highest point is a mere 3 meters / 9 feet.

The castle was built by Dionysius the Elder in six years, between 402 and 397 B.C., a time during which Syracuse was preparing for the inevitable clash with the Carthaginians for control of eastern Sicily.

To strengthen the defense of the city Dionysius decided to fortify the Epipoli (upper city) which, during the Athenian attack and siege in 415-413 B.C., had proven to be a weak point in the defense system. The Athenians were, in fact, nearly successful in cutting Syracuse off from the mainland by building a wall that went from one side to the other ("from sea to sea") of the peninsula where the city stands.

In order to watch over this area, Dionysius built the castle, which, rising to a height of 120 meters / 393 feet above sea level, now offers tourists a vast panorama in all directions. To complete the construction of the castle and a good 27 kilometers / 16.8 miles of walls as soon as possible, 60,000 troops and 6,000 pairs of oxen were mobilized.  Dionysius’ choice proved appropriate, because when the war broke out, Syracuse eventually prevailed.

The castle is divided into various parts, separated from each other by three moats dug into the rock (today only two are visible, the "B" and "C").  A dense network of tunnels dug into the rock allowed the soldiers to move very quickly from one part to the other without being seen or targeted by enemies.

From within the protection of the "B" moat a terrace rose where a battery of catapults, with which they could bomb the assailants from above, was stationed. (The mechanism was perfected by engineers from Syracuse: the great mathematician Archimedes himself did not refrain from  creating new military machines during the Roman siege of 212 B.C.).

The principal fortification rose within the security of a further, deep moat (the "C", which is open to visitors) and five towers ("pentapylon"), the foundations of which remain).

On either side, thresholds indicate the space in which the soldiers' quarters stood, dating back to Byzantine times.

 Another threshold (also built in the Byzantine era, when part of the castle was demolished in order to reconstruct the building as a rectangular fortification) eventually leads to a long enclosure, which narrows to form the tip of the imaginary "nail" from which the castle derives its name.

The archaeological trail is a great option, as it leads from this point towards the entrance, passing through another side ditch dug into the rock and also to some underground tunnels.

The Castello Euralio was constructed to protect the northernmost reaches of the ancient city of Syracuse, which was very extensive.  It is located, therefore, on the farthest point of the triangle of Greek fortifications in Syracuse, outside the current city, 7 kilometers / 4.3 miles from the Island of Ortigia.  

To reach it, therefore, it is necessary to have a car at one’s disposal or to call for a taxi from the reception desk at a special rate. Alternately, you can take the (free) shuttle bus # 20 from nearby Piazza Archimede up to the bus station (near the train station) and then choose from circolare 25 or circolare 26 (weekdays) or line 11 (on holidays).

Visitor Information  
Tickets can be purchased at the entrance to the castle (€ 4, € 2 reduced).  
The area is open daily from 9:00 a.m. to 6:00 p.m.  For information: tel. (++39) 0931 711773.

The remains of the castle are for the most part flat, with minimal height differences between various parts of the building. The path, however, is rough in parts (owing to clay soil, rocks and outcrops of rock, and a raised threshold between the fort and enclosure).  Thus, the castle cannot be considered fully accessible for people with walking difficulties (and a portion of the basement is accessible only by a stairway!).