🇵🇪 Peru · Hypothetical site
Marcahuasi — Second Plateau Amphitheatre and Fortune Altar (Lima Andes)
Quaternary geology Holocene wind tafoni onto Miocene andesite geology, no cultural horizon Holocene natural / fringe claim Pre-Columbian hypothetical · Natural andesite tafoni and wind hoodoos / fringe attribution to Masma culture (Ruzo unvalidated)
Marcahuasi second plateau amphitheatre 3950 m — 80 m hoodoo ring and 15 m 'Fortune Altar' mesa, wind-faceted andesite claimed as Lemurian carvings, geology tafoni.