Wardenclyffe Power Plant Prototype
Wardenclyffe Power Plant Prototype was a part of Nikola Tesla's World Wireless System project. The prototype consisted of a tower, built in Wardenclyffe. Tesla had planning papers for Wardenclyffe Power Plant Prototype in his Wardenclyffe laboratory.
In 1903, the Skithra attacked Wardenclyffe. Thirteenth Doctor proposed to use the power plant prototype to send a single bolt of lightning high into the sky to strike the Throne Ship of the Skithra. Together with Nikola Tesla they finished the tower, connecting it to the Doctor's TARDIS. After the Doctor transported the Queen of the Skithra back to her ship, Telsa activated the tower and successfully stroke the ship, forcing the Skithra to retreat from Earth.
A few years later Wardenclyffe was torn down. (TV: Nikola Tesla's Night of Terror)