i-hop thinking about this. and then all of a sudden, your car ends up pancaked. this is drone footage showing the dozen or more cars that fell into a 30-foot deep hole when i-hop's brand-new parking lot collapsed in mississippi. >> it was a big deal. we finally got an i-hop and as soon as it opens, this happens. >> reporter: what is this? >> i'm not going to call it a sink hole, it's an accident. >> reporter: it became apparent an under ground storm drain is a culpr culprit. this is a sink hole. eight vintage corvette fell in in kentucky. for purest a sink hole is when rock is dissolved by ground water leading the a sudden collapse but we call anything that causes things to suddenly sink into a hole a sink hole. at the i-hop no one was hurt.