Nikola Tesla Built a Giant Tower to Send Wireless Electricity Around the World

(via Atlas Obscura)  The tower went 187 feet up into the sky. The base was framed with wood, but the giant ball on top, 68 feet in diameter, was made of steel.Nikola Tesla, the inventor and engineer who helped electrify America, believed the tower was the start of a system that could deliver electricity, without wires, to the whole world.