The underside of the observation deck of the CN Tower, the world's tallest freestanding structure, framed by maple leaves and set against a blue sky in Toronto, Ontario, Canada.
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Editorial credit: Gary Blakeley / Shutterstock.com

Royalty-free stock photo ID: 2100843

The underside of the observation deck of the CN Tower, the world's tallest freestanding structure, framed by maple leaves and set against a blue sky in Toronto, Ontario, Canada.