As this is the Off-Topic Forum and a wide variety of topics are entered here I felt that I could start off this topic for fans of mechanical devices.
Also for ocean-liner fans I was happy to learn recently that the SS United States has been given to a preservation society to be restored at a future time. This beautiful ship which was designed and built in the USA was in long term storage on the American East Coast and was in danger of being hauled away as scrap which would truly have been a tragedy. This was one of the greatest ocean-liners ever built and could be considered a direct descendant of other luxury-liners such as the Titanic.
As a fan of all things mechanical I felt that I should start a thread about older machines in general, some of which have been preserved and some of which have been lost one way or another. I guess one could include items ranging in size from micro-cars such as the BMW-Isetta up to the preserved original Queen Mary ocean- liner out in Long Island, California ( and any other mechanical devices fitting into this wide range of sizes ).