Usually people pick a place they would like to visit and they try to find the solutions to make the trip as interesting as it can be.
Why focus on all the things you can visit in one place when you have access to so much more?
For instance, if you board the Trans Siberian express, you have the chance to go from Moscow to Beijing and from Moscow to Vladivostok or the other way around.
This will offer you the chance to see the best part of Russia and you will be able to enjoy a number of experiences you cannot find anywhere else.
If you want to make the right choices, you should invest a bit of time so you can learn about the perks you can enjoy at each destination and you can determine if it is worth the investment or if you are better off enjoying an adventure at the next stop instead.
One of the best ways to enjoy the surprises each destination can provide is by being a part of the tours that are organized there.