Here is a close up photo of the Jimyoin Temple roof.
I love the way the old buildings in Japan were traditionally built, the wooden structure and the Kawara roofs. Many of the temples and shrines are built using a traditional wood joinery technique, which were nail-less or used few nails. This technique is not written down on any manual but passed down as a craft from generation to generation.
The roof made from tile is also a very important part of the structure. I read somewhere that the beauty of Japanese architecture lies in the varieties of its roof. I tend to agree.
Take a look at more beautiful skies all around the world here.