A modern version of the Tesla tower has just recently been discovered in Texas by a team of reporters:

https://www.youtube.com/watch?v=7ATzLkr9JXk

" in 2018, Tesla's dream has been revived, and a company called Viziv swirling in the military industrial complex has erected a new tower with aims to test and someday broadcast wireless electricity to places close and remote around the world."

http://vizivtechnologies.com/technology/

"Our Viziv surface wave system allows the Earth itself to be used for clean, safe and efficient transfer of power between any two points on the globe, wirelessly.

A Zenneck Surface Wave is an electromagnetic wave that uses the surface of the earth as a waveguide enabling it to carry communications signals or electrical power efficiently over long distances.

This wireless power system will employ a “transmitter probe,” located near a power generation plant, to launch a Zenneck carrier wave.  Receiver antennae will be positioned appropriately around the world to receive the signal and download the power into a local microgrid or conventional grid architecture."