Some things to do with your family include:

Tomb Of The Unknown Soldier's changing of the guard ceremony.

Kremlin tour, Lenin's Mausoleum, Armory and Diamond Fund Tours

See central Moscow by foot. Don't forget the big shopping mall with the food court UNDER Red Square.

Izmalova flea market

visit Park Pobedy (Victory Park), easily reacheable by metro.

Check the Bolshoi schedule and see a ballet

KGB Museum

This information based on the forum thread:

http://www.tripadvisor.com/ShowTopic-...