🇪🇬 Egypt · Hydraulic works
Aswan First Cataract North Canal
Old Kingdom to Ptolemaic · Old–New Kingdom Pharaonic, Ptolemaic Greek Egyptian
2.1-km Pharaonic granite canal linking unfinished obelisk quarry to First Cataract Nile.
🇪🇬 Egypt · Pyramid
Elephantine Small Step Pyramid
Old Kingdom, 3rd Dynasty, ~2630 BCE · Ancient Egyptian
Minor step pyramid on Elephantine Island, Aswan (c.2630 BCE), 18.46 m base, frontier marker.
🇪🇬 Egypt · Pyramid
Elephantine Island Small Step Pyramid — Aswan
late 3rd–early 4th Dynasty, c.2630 BCE · Ancient Egyptian (Huni/Sneferu)
Small step pyramid at extreme southern end of Elephantine Island, Aswan: 11.5 m base, three steps, now 5 m ruin of granite rubble and limestone casing traces.
🇪🇬 Egypt · Pyramid
Pyramid of Edfu South
Old Kingdom, 3rd Dynasty · Ancient Egyptian
Edfu South small step pyramid 5 km south of Edfu Temple: 18.3 m limestone 3-step to 5.5 m, Huni series c.2630 BCE overlooking Djeba.
🇪🇬 Egypt · Hydraulic works
Wadi el-Hudi Amethyst Mines
Old to New Kingdom (2600–1100 BCE; peak 2050–1650 BCE) · Egyptian (Middle Kingdom)
Middle Kingdom amethyst mining landscape with 14 quarries and fortified miners' fort.