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Experience over 150 interactive activities! Ride the High Wire SkyCycle (seasonal)! Experiment with virtual reality and static electricity. Operate a pint-sized backhoe in the “Big Dig.” Music, magic, holograms, scientific wonders. Tour the Original Russian Space Station MIR on display. Open year round. Summer: 9 a.m. – 9 p.m. Fall, winter & spring: 10 a.m. – 4 p.m. Wisconsin Dells Pkwy (Hwy 12, Exit 92).