The five castle towers that make up the five-storied pagoda represent ground, water, fire, wind, sky from below. Each of the five layers shows its own world (thought), which represents a Buddhist cosmic view.Horyuji Temple Five-storied pagoda which is the oldest wooden building in the world
It is founded in 607 AD. The tower rising above the sky is beautiful and powerful.
Horyuji temple English commentary site
Horyuji Temple Wikipedia