The Department of Parks, Recreation and Tourism may designate no more than four extraordinary retail establishments as defined in Section 12-21-6520(14), and for purposes of this section, sales taxes must be substituted for admissions taxes wherever admission tax appears in this Tourism Infrastructure Admissions Tax Act. For purposes of this section, additional infrastructure improvements include any aquarium or natural history exhibits or museum located within or directly contiguous to the extraordinary retail establishment which are dedicated to public use and enjoyment under such terms and conditions as may be required by the municipality or county in which they are located. Additional infrastructure improvements shall also include site prep, construction of real or personal property, parking, roadways, ingress and egress, utilities and other expenditures on the extraordinary retail establishment which directly support or service the aquarium or natural history museum or exhibits. The certification application made under this section must be executed by both the extraordinary retail establishment as well as the county or municipality.