Japanese rocks on roof.
The japanese rock garden karesansui or dry landscape garden often called a zen garden creates a miniature stylized landscape through carefully composed arrangements of rocks water features moss pruned trees and bushes and uses gravel or sand that is raked to represent ripples in water.
It s called ita buki yane.
Or they can be boats or a living creature usually a turtle or a carp.
Japanese trellises are made in the same style but they have some addition of woods at top in different designs and styles.
Nakazonae are intercolumnar struts provided in the intervals between bracket complexes tokyō at religious buildings in japan.
Rocks and stones are just weights to protect the shingles from wind.
Another of the repercussions of the invention of the hidden roof was the role change undergone by struts called nakazonae 中備 中具.
In a group they might be a waterfall or a crane in flight.
Rocks on the roof savannah.