These are typical gothic arches you can find in many churches. Modelled based on actual reference. Fully UV Unwrapped so you can add other textures. If you use the marble one I did, remember to turn on a little bif of SSS on your shader.
STL (Stereolithography, filesize: 2.71 MB), OBJ (OBJ, filesize: 1.3 MB), FBX (Autodesk FBX, filesize: 423 KB)