5 public-domain matches

Lost Continents

Cover of The Cave Girl

The Cave Girl

Edgar Rice Burroughs

Cover of The lost continent of Mu

The lost continent of Mu

James Churchward

The Lost Continent

The Lost Continent

C. J. Cutcliffe Hyne

The Lost Continent

The Lost Continent

Edgar Rice Burroughs

The Origin of Continents and Oceans

The Origin of Continents and Oceans

Alfred Wegener