In brief
Early Buddhist wooden monuments are preserved in the Horyuji area. Their importance is also in adapting architectural models to Japanese environments.
Useful to know
The Horyuji area in Nara Prefecture includes Buddhist monuments, some of which UNESCO dates to the end of the 7th or early 8th century. They are among the oldest preserved wooden buildings in the world. [1]
The key here is "among," not automatically "the one" or "all one year old." The complex contains various monuments; the common name does not eliminate the need to distinguish the individual parts.
The source also explains the cultural transference: Chinese Buddhist models of buildings and planning have been adapted to Japanese culture. [1] This allows not only individual roofs to be considered, but also the relationship between buildings.
When shooting or planning, look for the material, the roof silhouette and the arrangement of the volumes at the same time. Do not conclude that wooden architecture is by definition temporary. The preserved monument is an occasion to ask specific questions about historical continuation and care, without inventing a history of each replaced element.
Sources
For further detail and to check the information: