Pillars of Solomon's Temple 

The Two Pillars of King Solomon's Temple were Boaz and Jachin.

These Pillars play an important part in the lectures of Freemasonry.

On The High Priestess Card of the Tarot, The High Priestess, or Papess, sits between Two Pillars marked as "B" & "J" probably indicating these Two famous Pillars.

What was the shape of these Pillars?  Were they circular or some other shape?  The Holy Bible says they had a diameter of 4 cubits and a circumference of 12 cubits.  This would indicate a value of 3.00 for Pi which is not correct and as such could be just one of the many probably mistakes in the Holy bible.

However if they were hexagonal the information fits.

See http://www.internet.lodge.org.uk/shortpaperscompetition//library/SPC200739.pdf (OK 20110314)