The Verge has the sad story:

A sinkhole reportedly opened up inside the National Corvette Museum in Bowling Green, KY at around 5:44AM local time, swallowing eight vintage Corvettes that were on display. The sinkhole is reportedly about 40 feet wide and at least 25 feet deep. No one has been hurt.

The story is very sad because museums are actually the ideal and even the happiest possible place for what are the dinosaurs of human transportation...