Complex sentence: The New South Wales Rail Transport Museum is Australia's largest and oldest railway museum with over 125 railway exhibits, this is the home to many steam and diesel locomotives, the most popular of which is the famous 3801.
Split into simpler sentences: The New South Wales Rail Transport Museum is Australia's largest and oldest railway museum with over 125 railway exhibits. It is the home to many steam and diesel locomotives, the most popular of which is the famous 3801.