One of many things that UrbanToronto members wonder about is how construction cranes are raised. Today's Photos Of The Day shows how one type of crane does it. Taken by Forum member udo this past Saturday, the photos show the crane being raised at the new L Condo tower. We start with a shot of the full building and the self-erecting tower crane that's attached to it hoisting a new piece of crane upwards.

L Tower Condos Toronto by Cityzen, Fernbrook Homes and Castlepoint RealtyImage by udo

The next shot is a close up of the crane piece as it nears its destination by the top of the crane.

L Tower Condos Toronto by Cityzen, Fernbrook Homes and Castlepoint RealtyImage by udo

The final shot shows the addition ready to be slid into place as the crane begins to climb. 

L Tower Condos Toronto by Cityzen, Fernbrook Homes and Castlepoint RealtyImage by udo

And that's a short look at how a crane grows. 

The 58-storey L Tower condo is being developed by CityzenFernbrook Homes and Castlepoint Realty with design by Daniel Libeskind along with Page + Steele Architects.

Tell us what you think of today's choice for Photo Of The Day.