Free online games has many building games available at http://www.freeonlinegames.com/tag/building-games. Most of these games have some sort of construction and demolition aspect to them.
Some of the best building games online are: Caslot, Rising Cities, Good Game Empire, Edgeworld, The Godfather 5 Families, Dragons of Atlantis, Lord of Ultima, The Hobbit: Armies of the Third Age, The Settlers.
There are many online building games one can play. Some of those games include ElectroCity, IBM CityOne, City Creator, Zanpo Virtual Cities and CityVille.
There are many good online games sites. Examples of good online games sites include popular on the web sources such as Addicting Games, Yahoo! Games, and OMG Pop.
There are many online games for girls, here are some suggestions:GirlsGoGamesClub PenguinOyunlar1Poptropica
Good online car games, are Need for Speed, Grand Turismo, and Forza.
second life is good
MAG
moderwarfare2
imvu or sims.
Pixie Hollow
Some good, appropriate games online for ten years old girls are generally fashion type games. These games can be found on the website, Girl Games 123.