Somehow I highly doubt there's a train that goes all the way from Portugal to Laos without needing to transfer, the first few paragraphs uses words to suggest such a train trip exists.
It's possible to stay on one train from Vladivostok to Moscow, on the train ride number 001Э (002Э goes the opposite direction): https://www.russianrail.com/train/rossiya
The article not only says that, but even discusses it in detail.
One would know that if, you know, one read at least 1/3 of the article before posting a comment.
It's possible to stay on one train from Vladivostok to Moscow, on the train ride number 001Э (002Э goes the opposite direction): https://www.russianrail.com/train/rossiya
And if anyone goes from Portugal to Laos, they should read this book along the way: https://en.wikipedia.org/wiki/The_Great_Railway_Bazaar