As a concept, sinkholes are terrifying—the solidity of the earth beneath your feet suddenly is in question. In February, a 40 ft. by 60 ft. one opened up under the National Corvette Museum in Kentucky and swallowed a roomful of classic cars. Luckily, nobody was hurt and only one or two cars were severely damaged, though it took eight weeks for the museum to find and extract the cars.
The upside? Tourism is booming. Between February and May, Quartz reports, visits increased by 50%. The museum plans to keep the sinkhole open for viewing through the summer, including during its 20th anniversary celebration in August.