How to add buildings to a given scenery?

[picaso]

Does someone tell me How can I add buildings to a given scenery?

For example: If I want to add churches, houses and hotel buildings to the Puerto Vallarta scenary.

Is it Possible?

Thank you

Picaso

[FlytheSpitfire]

Here, check these out...Cheers

http://www.lagoonline.com/ENG/prodotti/pdt.asp?id=100000

http://www.airportforwindows.com/