Overlooking the harbour of St John's, in Newfoundland and Labrador, Canada, is a massive piece of rock towering 140 meters above the Atlantic Ocean. The rock, known as Signal Hill, stands on St John's eastern shore across a narrow waterway that leads into the harbour. To the north lies Quidi Vidi Lake, and to the west lies the city towards which the hill descends gently in ridges and valleys. It was on top of this hill, in December 1901, that Guglielmo Marconi stood to receive the world’s first wireless transatlantic transmission.

Cabot Tower on Signal Hill. Photo credit: Michel Rathwell/Flickr