The seven most expensive homes for sale in Ottawa this fall

River View Estate in Dunrobin is on the market for $8.8 million, the most expensive home for sale in Ottawa. (Christie's International Real Estate/website) River View Estate in Dunrobin is on the market for $8.8 million, the most expensive home for sale in Ottawa. (Christie's International Real Estate/website)

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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.