🇨🇺 Cuba · Pyramid
Guanahacabibes Megastructure – Cuban Underwater City Claim
Pseudoarchaeology 2001 claim (no chronology: proposed 50,000 BP via Cayce) · Cuban-Canadian media claim
2001 sonar headline 'city off Cuba at 650 m' — follows fractal slump scarps, not pyramids; USGS null.