parthenon model

a while ago i began to work on a model for the parthenon

but i don’t ahve the details for how the beams are set on top of columns

anybody has some site for this detail showing how to set the columns and all the beams

see pic
the last pic show the aprthenon and some bemas with a bevel but does not show how the corner is done!

the problems seems to be at the corner of building!
if full width beams are used then how to make the corner column
see pic s