Three types of structures - poles / pylons.

- A small "ground" column rather known from earlier times - for power lines, telephone signals, etc.
- High iron pillar is known lattice structure such as the Eiffel Tower
- The largest extension to the third floor - the type of truss

Modeled with respect to detail - so high poly.

Of these three columns can fill your entire scene - it will only need to finish connecting the wires.

In the case of Max scenes are preserved / present all modifiers.