I just wanted to make sure everyone knows about the awesome coloring in books available. I shop mostly for these through book depository and amazon.
I have found colouring in books On lots of educational topics including
Biology, American birds, flowers, vetinary animals, earth, geography ( maps and general country info), famous artist reproductions ( yes you can color in Monet!) lots of anatomy ones, American architecture, as well as specific animals, Rome, marine studies, the list is looooooong :yes:
Anyway coloring in is a popular pastime for many kids but it has little “real” art value. It does however help strengthen finger muscles and fine motor skills. So if you can couple this pastime with a learning experience on perhaps famous ancient buildings it’s a two birds with one stone 
Here is a link (but not an extensive one!) to book depository http://www.bookdepository.co.uk/search/index?searchTerm=Coloring+book&searchSortBy=popularity&category=1651
there is a US site for book depository too http://www.bookdepository.com/search?searchTerm=Coloring+in&searchSortBy=popularity&page=1#pagination