[ErroneousBosh]

Tie every helicopter you can find to the roof, gas the bent bit off, haul it away and drop it somewhere?

They'll likely shore it up with hydraulic props - probably going through the floor and ceiling to floor slabs above and below - to stabilise it, and then start demolishing the building bit by bit.

[kylehotchkiss]

When you run the mental model of picking up a building with a bunch of surplus Hueys, do they not all collide together once they start bearing weight?

[ErroneousBosh]

Not if you make the strings different lengths.

[hagbard_c]

In that case the helicopters lower in the pecking order will chop off the strings for the higher ones. I thing seagulls is a better idea, if it worked for a giant peach it should work for a building. Plenty of those around and they'll work for peanuts.

[tonyedgecombe]

Balloons should do it.

[singleshot_]

“spreader bar”

[ErroneousBosh]

But not one made out of the same stuff as those beams, they're like chocolate.