This month (and there are still some days left!) it is Dollar Days for all Kentucky residents.
Here is their ad (directly from their website):
"Dollar Days All Month Long (at the Corvette Museum) For Kentucky Residents
Kentucky residents can visit the Museum this month for only $1 per person! Bring your id and tour for only $1 per person and see many areas of the Museum's new 47,000 sq. ft. expansion plus exciting Corvettes from the past, present and future! Open 7 days a week from 8 a.m. to 5 p.m. CT. Located at exit 28 off I-65."