»In which it's like a ring around a rosy

A portion of the David Lawrence Convention Center in Pittsburgh collapsed under the weight of a pickup truck. Or something like that: the engineers are still sorting out how to extricate the truck from the mess.

"A 6-inch-thick section of concrete flooring in the second-floor loading dock of the David L. Lawrence Convention Center collapsed yesterday under the weight of a tractor-trailer, sending steel, debris and equipment crashing 30 feet down into a walkway and a water feature below. ... We have a crane company that we're talking to [about] how do we remove this [truck] or at least shore it up? But from a structural standpoint, it isn't going anywhere. It's lodged in there real good."

The American Institute of Architects published a list of "one hundred and fifty favourite buildings in America. The Golden Gate Bridge is high on the list.