The Pinghsi line, which runs from Santiaoling to Chingtung in Taipei County; the Neiwan line, which runs from Hsinchu to Neiwan; and the Chichi line, which runs from Erhshui, Changhua County, to Checheng, Nantou County, are located in the north, north-central and central regions of the island, providing a panorama of the industries, scenery and customs of these three areas.
台北縣三貂嶺到菁桐的平溪線、新竹到內灣的內灣線、彰化二水到南投車埕的集集線，正好分別位於北部、桃竹苗和中部，可以一覽這三個地區不同的產業型態、自然景觀和風土人情。