When talking about the tallest structures in the world, one often thinks of skyscrapers above modern cities, but radio transmitters in remote locations also reach dizzying heights. Italy is famous for its many architectural marvels built over the millennia, but its tallest building (a sleek, modern structure in Milan) is only 758 feet tall. The title of the tallest overall structure goes to a radio transmitter on the Sant’Anna hill near the town of Caltanissetta, in Sicily. (In between the two are a number of transmitters and power plant chimneys.)…
