American daredevil Harry Gardiner, better known as the Human Fly, scales the 17-storey Sun Tower building at the corner of Pender and Cambie in front of a crowd of thousands.

Known at the time as the World Building, the 82-metre-high building was the tallest in the British Empire and the death-defying climb was a publicity stunt to encourage people to buy Victory Loans as part of the war effort. Gardiner, 47, wore ordinary street clothes and did not use any safety equipment.

The First World War ended 11 days later due to unrelated reasons.