Mardi Gras is always exciting for children, and the permanent exhibit Mardi Gras: It's Carnival Time in Louisiana provides eye candy and fun, tracing New Orleans' parades and Carnival balls from their beginnings to today. Open 10 a.m. to 4:30 p.m. Tuesday through Sunday. Closed holidays. Admission $6 adults; $5 seniors, students and active military personnel; free children 12 and younger. Admission includes other exhibits in the museum.