Yes, in Beijing! But they didn't stay there long, and nothing really happened there. It was such a weird plot element that it stood out like a huge sore thumb.

Interesting. Thanks for answering all of my questions in this thread.

To be honest, I'm somewhat surprised there were any untouched cities left for Michael Bay to destroy after already having made three previous Transformers films.

He basically destroyed Chicago 2 times in the first 3 films. He has a huge hatred of Chicago, I guess.

More likely it's tax incentives. For example:

Betsy Steinberg, managing director of the Illinois Film Office, acknowledges the cold financial calculations that go into site selection and the increasingly cutthroat competition: "Without a competitive tax credit, we'd be seeing very little business."

...

Paramount Pictures' "Transformers 3," which likely will spend at least $20 million during its six-week shoot here this summer, could qualify for a tax credit of at least $6 million, which it can use or sell, effectively cutting its local filming budget.

http://articles.chicagotribune.com/2010-07-27/business/ct-bi...

Maybe the transformers don't have the right license plates to drive in Beijing every day of the week

Ha! Sorry Optimus, you'll need to take the subway today.