Onbashira festival
Onbashira (御柱) is a festival held every six years[1] in the Lake Suwa area of Nagano, Japan. The purpose of the festival is to symbolically renew the Suwa Taisha or Suwa Grand Shrine. "Onbashira" can be literally translated as "the honored pillars". (From http://en.wikipedia.org/wiki/Onbashira)