could you please post some links with :
1) Old postcards
2) Free paper building models (something like this one - http://perso.wanadoo.fr/midgard/ww2/
go to decors/scenics>buildings
3) And not free paper models (to get an inspiration when scrachbuilding)

http://www.koelnerfoto.de/Seitenauto/ARCHITEKTUR/LANDHAUS/index.html

www.cpa77.com

http://macswitch.tripod.com/berlin/id13.html

http://www.notrefamille.com/carte-postale/france/photos/cartes-postales-anciennes/photos-anciennes/manche/-granville-_500218_0_2.html

http://battle.volgadmin.ru/osn_eng.asp?np=22

card models, please click at Google free card models and I´m sure that you can find a lot of these models
but... you lives in Lituania, you only goes at street and you have a good source of inspiration :-)
carlos

As for styles, anything up to Bauhaus, functionalism and Art Deco.

Now how many of those can be found depends, among other, on the country you try to depict.

my first iorama was made by foto of building wich i took at my free time

It seems that these images could be printed, cut out, and then pasted onto styrofoam to create a nice little sturdy scene. Is that the normal way it is done? i see people playing this game at a local hobby shop, but do not know how they create their scenics.

checkout the dragonusaonline site. They have some building sets for sale. you may get some ideas from those kits. Aint too badly priced either at 18.95 plus u get some figgies with it.