After much work in this thread I completed converting the below list of wonders into tile improvements after Pazyryk requested it (2 years ago - yikes!)
-Since wonders don't have pillage graphics I included a 'generic' ruble one that works with it.
-Also includes are fxsxml files (based on holysite.fxsxml) to use. Just change the gr2 names.
-Finally, there are two dds files. Copies of the holysite ground but changed so you can make your own turf. If you want each wonder to have unique ground graphic, well you have to change it with nexus buddy)
The wonders included are:
Mausoleum of Halicarnassus
Mosque of Djenne
Statue of Zeus
Temple of Artemis
I did a few unique pillage graphics (for testing)