40-foot wide sinkhole creates ` ` millions '' in damages at the Smithsonian Museum . ` Motion detectors alerted security that something was amiss shortly after 5:30 a.m. , said museum spokeswoman Katie Frassinelli . ` There 's a cave down there , '' says a spokeswoman . Engineers say Sky ##way suffered no structural damage . The cost of the damaged structure is ` ` substantial , '' a museum director says .
40-foot wide sinkhole creates ` ` millions '' in damages at the Smithsonian Museum . ` ` There 's a cave down there , '' says a spokeswoman . Engineers say Sky ##way suffered no structural damage . The cost of the damaged structure is ` ` substantial , '' a museum director says .