This was based on the door from Köln Cathedral in Germany.
The stone walls you see in the renders are NOT included in this model, this is the DOOR only. If you want the entire Mausoleum, you can find it in my profile.
The model uses many UDIMs for the textures, make sure you assign them all correctly.
STL (Stereolithography, filesize: 40.9 MB), OBJ (OBJ, filesize: 28.2 MB), ABC (Alembic, filesize: 11.3 MB), FBX (Autodesk FBX, filesize: 5.35 MB)