🇬🇷 Greece · Hydraulic works
Tunnel of Eupalinos (Efpalinos) — Samos Aqueduct
Archaic (600–500 BCE) · Ionian Greek (Samian) — engineer Eupalinos of Megara
Herodotean 1,036-m tunnel 550 BCE dug from both ends with 60 cm meet error.
🇪🇸 Spain · Hydraulic works
Segovia Roman Aqueduct
Roman Imperial (mid-1st to early 2nd c. CE) · Roman Hispania Tarraconensis (Segovia)
Augustan 28.5-m 167-arch granite aqueduct 20 km 30 L/s without mortar, UNESCO 311.
🇫🇷 France · Hydraulic works
Pont du Gard — Roman Aqueduct Bridge
Roman Imperial (Augustan-Claudian, mid-1st c. CE) · Roman Gallia Narbonensis (Nemausus)
Augustinian 48.8-m 3-tier bridge 50-km Nîmes aqueduct 35,000 m³/d, 6-tonne dry stone.
🇪🇸 Spain · Hydraulic works
Reservoir of Source Mesa
Andean Formative (1800–200 BCE) · Andean Formative
Reservoir of Source Mesa in Andalusia, Spain is a Andean Formative (1800–200 BCE) hydraulic attributed to Andean Formative culture.
🇾🇪 Yemen · Hydraulic works
Reservoir of Little-Hunstanton
Chalcolithic (4500–3300 BCE) · Chalcolithic
Reservoir of Little-Hunstanton in Hadramawt, Yemen is a Chalcolithic (4500–3300 BCE) hydraulic attributed to Chalcolithic culture.