Cabot Tower was built in 1897 to commemorate the 400th anniversary of John Cabot's discovery of Newfoundland, and Queen Victoria's Diamond Jubilee. It is located on top of Signal Hill overlooking the city of St. John's, Newfoundland and Labrador. In 1901, Guglielmo Marconi received the first trans-Atlantic wireless message at a position near the tower, the letter "S" in Morse Code sent from Poldhu, Cornwall, United Kingdom.
Cabot Tower is now the centre of Signal Hill National Historic Park, Canada's second largest historic park, with walking trails, and an interpretation centre. Hikers that venture on the hill will be rewarded with spectacular views of the city, the harbour, and the ocean. - Wikapedia