![It is possible to travel from portugal to vietnam solely by by train: at 17,000 kilometres, this is the longest train journey in the world. - 9GAG It is possible to travel from portugal to vietnam solely by by train: at 17,000 kilometres, this is the longest train journey in the world. - 9GAG](https://img-9gag-fun.9cache.com/photo/aDzDRZN_460s.jpg)
It is possible to travel from portugal to vietnam solely by by train: at 17,000 kilometres, this is the longest train journey in the world. - 9GAG
![Train returns to China from Spain on the world's longest rail route | Travel route, Travel, China travel Train returns to China from Spain on the world's longest rail route | Travel route, Travel, China travel](https://i.pinimg.com/originals/fe/96/f1/fe96f1c1344b559244ed6fe10fbb27de.jpg)
Train returns to China from Spain on the world's longest rail route | Travel route, Travel, China travel
![The Ghan, the longest passenger train in the world stretches further with more carriages | Daily Mail Online The Ghan, the longest passenger train in the world stretches further with more carriages | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2016/05/26/13/34A28A4600000578-3610661-image-a-34_1464265921758.jpg)