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Florence - Brunelleschi's secrets revealed

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I found a great article (and a PBS documentary) on the revolutionary building techniques which Filippo Brunelleschi used to build the dome on the Santa Maria del Fiore in Florence. Brunelleschi left behind no notes or drawings, so how he built the largest post-Roman dome without the aid of support structures has been a mystery. Architect Massimo Ricci believes he has solved the puzzle and is presently building a scaled-down model in a city park using what he believes are the same methods Brunelleschi employed.

http://news.nationalgeographic.com/news/2014/02/140210-duomo-florence-brunelleschi-cathedral-architecture/

If you want to see the PBS documentary, then go to their web site and search for "Great Cathedral Mystery."

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