Dine beside a World War II German submarine. Stand inside a 40-foot tornado. Mingle below historic aircraft. Celebrate the sweet things in a classic ice cream parlor. MSI is the largest science museum in the Western hemisphere and is housed in the only remaining structure from the 1893 World’s Columbian Exposition. With thousands of exhibits, artifacts and “wow” moments that last a lifetime, MSI is the premier destination for unique and engaging special events – we have events down to a science.