Use a half-inch binder that allows you to insert a cover sheet. Have your children design a cover with illustrations of favorite buildings, styles or other related things. It can be done on the computer with pictures from the Internet or hand-illustrated.
Use at least five sheet-protector dividers (so the student can design a cover sheet for each section) for each notebook to cover the following topics:
Vocabulary Treasure Hunt
Great Buildings of the Ancient World
Great Buildings Around the Wrold
Sub-dividers for the Great Buildings and Sacred Architecture sections (organized according to continent) can be made by illustrating a sheet of cardstock and using Post-It Brand index tabs for each section.