M3 at M City in Mississauga is closing in on closing up its crown — stepped if you catch it from any other angle than the head-on view in this startling drone shot — and is already Mississauga's tallest building. Set into the uppermost floors of 77-storey tower is a Tuned Mass Damper — that mysterious black box in the centre — which counteracts sway that a strong wind may cause, keeping its future residents comfortable.

Looking through the growing crown of M3, Mississauga's tallest building, image by UrbanToronto Forum contributor Tim MacDonald

This image comes to us courtesy of UrbanToronto Forum contributor Tim MacDonald. Want to see your work featured as a Daily Photo? You can post in the City Photos & Videos section of the UrbanToronto Forum, or submit your images to our UrbanToronto Flickr Pool for your chance to be featured on our Front Page. 

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Related Companies:  A&H Tuned Mass Dampers, Arcadis, Cecconi Simone, Doka Canada Ltd./Ltee, Egis, EllisDon, Motioneering, Peter McCann Architectural Models Inc., Rebar Enterprises Inc, RJC Engineers, RWDI Climate and Performance Engineering, SKYGRiD, Unilux HVAC Industries Inc.