The viewer's eyes are naturally drawn along vertical lines, parallel lines, diagonal lines, lines pointing to the horizon (and even cut there) and even strong horizontal lines. You may use these lines to produce specific effects, like depth in an image. Some of the main subjects in images, such as these, are paths, rails, buildings and streets.

You will find the examples in the image album.

Analyse the examples and note some key words to each image (describing the mood you feel, or your personal perception.