🇬🇷 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.
🇬🇷 Greece · Temple complex
Heraion of Samos
Archaic to Roman ~900 BCE–300 CE · Samian Greek (Ionian)
Polycrates' 109 m giant Ionic Heraion - largest attempted Greek temple on Samos plain.