This is an original 3D model. It is a Gazebo base on renaissance-style architecture and art. The building is something I would imagine seeing in Italy in the renaissance. This is a 3D printable model and it is also animatable.
This file is a zip. To access the 3d model, extract the folder containing the models, then open the folder.
This zipped file contains several file formats for this model.
Format 1 is .stl which is 3d printable.
Format 2 is .obj which also is 3d printable.
Format 3 is .fbx which is used for display and animation purposes and is set up for Arnold in Maya.