There are some very good models of Taj Mahal in 3D Warehouse.
But most of there details are modelled, not mapped with photos.
So the filesizes (kmz) of the models are very large ( 1- 4 Mbyte) and
not so suitable for GE.
Now I have a model of Taj, accurate modelled and mapped with the
filesize 226 kilobyte.
http://sketchup.google.com/3dwarehouse/details?mid=d4f7042bc18d80fed90e298f2b4f8b1e