Traditional Bhutanese Bridge built completely out of wood. Nails are hardly used. In olden days, even the roofs were made out of wooden planks. It's seen only in Bhutan.

Stock photo: Traditional Bhutanese Bridge built completely out of wood. Nails are hardly used. In olden days, even the roofs were made out of wooden planks. It's seen only in Bhutan. was taken by happytshering .