Tenryu-ji garden with Arashiyama mountain in the background

One of the Japanese garden aesthetic principles, the "borrowed scenery" (shakkei in Japanese) is using the landscape behind the garden to create a special atmosphere.

A beautiful example is this photo from the Tenryū-ji temple in Kyoto, with the green Arashiyama mountains in the background. The feeling is that the garden stretches out far away, up to the mountain...