Explorium of Lexington offers adventures in fun and learning. With nine discovery zones filled with interactive exhibits designed to inspire imagination and curiosity, kids of all ages have experiences that can last a lifetime. Hours: 10 a.m. to 5 p.m. Tuesday through Saturday; 1 p.m. to 5 p.m. Sunday Admission: $5; children 12 months and under free Contact: (859) 258-3256