Cabot Tower located on Signal Hill in St. John's opening in 1900.The Gothic Revival building was designed by Architect William Howe Greene.
Construction of the tower began in 1898 to commemorate the 400th anniversary of John Cabot's discovery of Newfoundland, and Queen Victoria's Diamond Jubilee.
The height of the tower is 15 metres.
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 the Signal Hill National Historic Site of Canada.