What is the best way to clean an old doll house?

I recently acquired a wood doll house made by my great-great grandfather. It is very basic and I would like to clean it up for my daughter to use. It has been in an attic and appears to have been used as a home by animals. I want to give it a good cleaning without ruining it. What is the best and safest way?|||http://www.anythinggoesinc.net/doll-hous鈥?/a>