A sinkhole 40-feet wide and 30-feet deep opened up under the National Corvette Museum's Sky Dome this morning swallowing eight Corvettes.

Stories about sinkholes swallowing up homes and property around country just hit home for Corvette aficionados: a 40-foot wide, 30-foot deep sinkhole opened up beneath the National Corvette Museum taking eight ‘Vettes with it.

The hole began forming before 5:30 a.m. beneath the museum’s iconic Sky Dome.

“We received a call at 5:44am from our security company alerting us of our motion detectors going off in our Skydome area of the Museum,” according to the museum’s blog. “Upon arrival it was discovered that a sinkhole had collapsed within the Museum.”

Of the eight Corvettes that fell into the sinkhole, six were owned by the museum and two were on loan from General Motors.

The museum is located in Bowling Green, Ky., which is at the outer edge a region where sinkholes, caves and other geologic formations of that type are commonplace. The museum, which is closed, owned six of the eight vehicles in the hole. The other two were on loan from General Motors. The eight included:

• 1962 black Corvette
• 1984 PPG pace car
• 1992 white 1 millionth Corvette
• 1993 ruby red 40th anniversary Corvette
• 2001 Mallett Hammer Z06 Corvette
• 2009 white 1.5 millionth Corvette
• 1993 ZR-1 Spyder on loan from General Motors
• 2009 ZR1 “Blue Devil” on loan from General Motors

The museum has engineers onsite assessing the situation, but it appears the rest of the museum is stable. The cause of the sinkhole hasn’t been determined.

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“We will keep everyone informed as we know more,” the museum said. “With the 20th Anniversary celebration, Grand Opening of the NCM Motorsports Park, and the National Corvette Caravan coming August 27-30, we’ve got a lot to be excited about in 2014, and look forward to getting the Skydome repaired and reopened very soon.”

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There are still several vehicles in the Sky Dome that are undamaged. The museum was allowed to remove one vehicle: a prototype 1983 Corvette. No Corvettes were produced that year so it is the only one in existence.

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The nearby GM plant that builds the Corvette has not been impacted.