We really like this book recommendation from "Unplug Your Kids." It's a flip book that has photos and descriptions of a typical kindergarten day in the US and China- all from a child's point of view.
We can imagine this type of book leading to all kinds of activities and being applied in the home. For example, the book has a little clock on each page displaying the time in the US and in China- why not hang two clocks in your home so children can keep track of relatives in different time zones.
We have friends that have their children spin a globe and point to a different spot each month. The family then learns about whatever country they've chosen, eating their food and learning their customs.