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Photographs:Fernando Guerra | FG+SG
Text description provided by the architects. The Gruta das Torres, which is a volcanic cave located on Pico Island in the Azores, was classified as a Regional Natural Monument in 2004.


Text description provided by the architects. The Gruta das Torres, which is a volcanic cave located on Pico Island in the Azores, was classified as a Regional Natural Monument in 2004.
