These have long been a subject of interest for me. On road trips, when the towering structures appear in their numbers, several meters from the tarmac, I observe the sagging wires from post to post, following the series until they recede into the wilderness, or get off the way.

Pylons on water. I find this the more interesting. It reveals an urgency to transmit power over the shortest possible distance especially across water. And as such, special cases like this often require special treatments.