🇩🇿 Algeria · Ancient port
Siga Outer Harbour (Takembrit Offshore)
Numidian to Late Antique (3rd c. BCE–7th c. CE) · Numidian (Masaesyli) / Roman (Mauretania)
Syphax's harbour with 200 m submerged rubble mole and purple middens.
🇲🇦 Morocco · Archaeological wonder
Mogador (Essaouira) – Phoenician Isle
Phoenician to Late Antique (7th c BCE–5th c CE; peak 7th–6th c BCE) · Phoenician / Mauretanian / Portuguese
Tiny purple island with earliest Atlantic Phoenician 7th c BCE outpost for murex dye – 'Tyr's Atlantic anchor'.
🇪🇸 Spain · Ancient city
Rusadir
Phoenician to Late Antique (7th c. BCE–5th c. CE) · Phoenician / Punic / Roman / Mauri
Punic-Roman cape town beneath Melilla with dye vats and tophet.
🇪🇬 Egypt · Hydraulic works
Mons Porphyrites — Imperial Porphyry Quarry
Roman Imperial (29 BCE–211 CE, active to 4th c) · Roman Imperial
Mons Porphyrites (Gebel Dokhan) is the only imperial porphyry quarry in Roman Empire (29–211 CE) producing purple porphyry for Diocletian and Hadrian pillars, sarcophagi and Pantheon.