How do I get a GUI from a computer in other computer?

I have an ubuntu with a lubuntu GUI installed in a computer (PC 1).

Now, I've been able to access this computer through another computer by SSH (just the terminal, no graphical interface), but I want to see the whole GUI and interact with the OS normally (not just a window).

In other words, the idea is: I have installed in other computer (PC 2) an ubuntu minimal (no graphical interface), and I want to pull the lubuntu GUI from the PC 1 to see in the PC 2 and be able to control with my mouse like when we use TeamViewer.

Is it possible? If not, if I install an interface on PC 2 can solve or help to solve the problem?