Calgary doctor files human rights complaint over changes to mask rules on airplanes

Passengers wear masks at the Calgary airport on Oct. 30, 2020. Passengers wear masks at the Calgary airport on Oct. 30, 2020.

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Exploring a tunnel deep below Niagara Falls

Turbines that once harnessed the powerful energy of Niagara Falls into a great source of electricity came to a halt years ago. But the secrets deep below the power station are coming to life once again. Visitors can now explore the former cathedral of power and a new tunnel that opens to a spectacular view of the falls.