In Eklutna, Alaska, a village outside Anchorage, there is a tradition of building a 'spirit house' over the grave of a relative. They range from simple to intricate, and are painted with the family's colors.

When Russian Orthodox missionaries first came to the area, they allowed the native tradition to continue. For church members, an orthodox cross is added to the spirit house.

http://www.swulinski.com/travels/AlaskaNatives.html