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The catalogue
3 places to sift through. Narrow by kind, country, period or how firmly each one is established — contested and pseudoarchaeological claims are labelled here, never hidden.
🇱🇾 Libya · Submerged site
Hellenistic to Early Islamic (247 BCE – 642 CE) · Greek Ptolemaic / Roman / Byzantine
Ptolemy III foundation 247 BCE — Pentapolis harbour drowned 2 m off Tolmeita with 100 m breakwater and 6,000 m³ cisterns.
🇧🇬 Bulgaria · Submerged site
Archaic to Late Antiquity (610 BCE – 6th c. CE) · Milesian Greek / Thracian / Roman / Byzantine
610 BCE Milesian colony whose harbours are now –6 m and linked to the vanished island Kianida of Ptolemy's map.
🇪🇬 Egypt · Archaeological wonder
Hellenistic Ptolemaic 297–280 BCE · Greek (Ptolemaic Alexandria)
100-m Ptolemaic lighthouse wonder whose lantern guided ancient Mediterranean.
