This model contains only 70k faces and it has NO textures added so it basically works in any version of Blender - except if you work with Blender 2.79, you will see some packed textures. It's perfect for game engines as well and I have attached multiple download formats: 3DS, Blender, STL, ABC, FBX, OBJ, X3D. 

I made this model for my YouTube channel "EarthquakeSim" where I test various structures for earthquakes and simulate different degrees of damage with a powerful plugin. You can check my video featuring the Big Ben model here: 

https://youtu.be/6aezhkm5VEs?si=SvriCOjz-50f1opZ

If you have any questions, feel free to send me an email!