How do you...

[highlandcattle]

I know it is done with plates but how does the whole thing stick together?

Anybody knows? This is btw a very lovely scenery

[Wout]

Euh, SNOT I presume,

Is this not from a German site, which is called World of ABS?

Very nice diorama

[Freddie]

If you're thinking that building is hollow, you're just slightly right. Walls like that sacrifice interior to make room for gasp-worthy amounts of bricks with studs on the sides. The plates that actually holding the walls inplace usually reach several studs in, to attach to said bricks. That said, there's a lot of calculation (or trial and error) to get a good effect.

To put it like this, the inside of that building will probably look like a (poor) game of tetris.

[highlandcattle]

Do you guys know about an online guide or something to make like those window in the bottom part?

[Mr. Lego-builder]

I am pretty sure the windows that are on the building are actually doors which are not produced by TLG anymore. See these pictures:

(bottom "windows")

and

(top "windows")