Before revision: Eternal Flame Falls in New York has an eternal flame inside a small grotto behind the falls Grutas de García in Nuevo León, Mexico A grotto is a natural or artificial cave used by humans in both modern times and antiquity and to infinite and beyond, and historically or prehistorically .
After revision: Eternal Flame Falls in New York has an eternal flame inside a small grotto behind the falls Grutas de García in Nuevo León, Mexico A grotto is a natural or artificial cave used by humans in both modern times and antiquity .