There is no interior space in the buildings.
Vertex Count:
Building 1: 23,796
Building 2: 49,085
Building 3: 130,181
Building 4: 71,066
Number of Textures: 190
(PBR)
Texture Resolutions: 4096x4096
Video Preview: https://www.youtube.com/watch?v=oUVDcOELdLk
TEXTURES (Textures, filesize: 2.13 GB), FBX (Autodesk FBX, filesize: 824 MB)