thumb|Puffing Billy Railway bridge The world's second preserved railway, and the first outside the United Kingdom, was Australia's Puffing Billy Railway. This railway operates on of track, with much of its original rolling stock built as early as 1898. Just about over half of Australia's heritage lines are operated by narrow gauge tank engines, much like the narrow gauge lines of the United Kingdom.
thumb|puffing billy railway bridge the world's second preserved railway and the first outside the united kingdom was australia's puffing billy railway this railway operates on of track with much of its original rolling stock built as early as 1898 just about over half of australia's heritage lines are operated by narrow gauge tank engines much like the narrow gauge lines of the united kingdom