This was transwikied from-

Guangzhou CITIC Plaza DSC02461

As it was in 2013.

Citic plaza buckles

the tower buckles.

Citic plaza collapses

a floor by floor implosion.

2 days after people: The electrical power shuts down. Most dogs and cats escape without humans.

5-10 days after people: The food rots away.

1 year after people: This house starts to flood and grow plant life.

100 years after people like the John Hancock Center the tower buckles and starts a floor by floor structural implosion.