This section is from the book "A Library Of Wonders And Curiosities Found In Nature And Art, Science And Literature", by I. Platt. Also available from Amazon: A library of wonders and curiosities.
Grotto in South Africa - Grotto del Cani - Grotto of Antiparos - Grotto of Guacharo - Snow Grotto - Cave of Fingal - Cave near Mexico - The Nitre Caves of Missouri - Okey Hole - Borrowdale - Needle's Eye.
Sweet interchange
Of hill and valley, rivers, woods, and plains,
Now land, now sea, and shores with forests crown'd. Milton.
 
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