Elvas Fortifications

Elvas is a whole town inside a fortification system, and the system is the reason to come: kilometres of bastioned wall and dry ditch wrapping the old streets, with two detached hill forts, Santa Luzia and Graca, set above the approaches. UNESCO calls it the largest bulwarked dry-ditch defensive complex in the world and listed it in 2012. The other half of the picture is the Amoreira aqueduct, built over more than a century to bring water in, which crosses the valley on tiers of arches stacked four deep and walks right up to the edge of town. Inside the walls, whitewashed lanes, a cathedral on a marble-paved square, and a small triangular square with a Manueline pillory.

What you'll find

• The Amoreira aqueduct - arches stacked four tiers high across the valley into town.
• Fort of Santa Luzia - the detached star fort south of the walls, with underground galleries.
• Fort of Graca - the larger hill fort north of town, restored and open to visit.
• The wall circuit - bastions, ravelins and ditch walks right around the old centre.

When to go

Spring and autumn; the Alentejo in July and August is brutal on open ramparts with no shade at all. Late afternoon light suits the aqueduct arches. Allow a full day if you want both hill forts, since each takes a drive and a climb. Weekday visits are quiet outside the September fair.

Before you go

The fortifications are spread out and mostly unsignposted, so without a car and a map you will see a fraction of them. The town centre is quiet and shabby in places, with shuttered shops. Fort opening hours are inconsistent. Nothing here is dramatic in the way a hilltop castle is - the interest is in the geometry and the scale.

Nearby

Estremoz and Vila Vicosa's marble towns are west, and the Guadiana country opens to the south.