For proper use, we recommend downloading the source format.The converted file is intended only for use in the web viewer. In the Original format, the following are fully preserved:✔ native scene structure✔ unsimplified materials✔ proper texture maps✔ correct object namesIf you intend to use the asset in a production environment, select the Original format.If you find my model useful please rate it with clicking on the picture with right click. A high quality model to decorate the classical facades and interiors.