Are you ready to explore an underwater world? Discover strange, beautiful, and fascinating creatures from around the world in our Reiman Aquarium. You’ll pet stingrays and sturgeon in our Touch Tank. Meet adorable turtles, axolotls, ball pythons, poison dart frogs, and so much more. And be sure to check our Event Calendar for a full schedule of our brand new...Around 30 million people make their home around the Great Lakes. Explore one of the largest interactive models of the Great Lakes in the world! Investigate the geology and geography of some of the fish, turtles, snakes, and other creatures that make their homes in the Great Lakes Basin. Make it rain and create fog. Welcome to the Great Lakes!How does the Milwaukee Water Works purify water so that it’s safe to drink? How do we use water in our homes, schools, and businesses? How does the Milwaukee Metropolitan Sewerage District clean the water and protect Lake Michigan? Discover the story of water as it travels from Lake Michigan to our homes and back again.Make waves on The Challenge! The Challenge is a replica of a Great Lakes Schooner that sailed 1852-1889. The original vessel was built by a 25 year-old shipwright named William Wallace Bates, who had only an 8th grade education and influenced shipbuilding by including the use of a retractable centerboard. The Challenge was the semi-truck of the Great Lakes. The...There are six classical simple machines, the elementary “building blocks” of all the complicated machines today. You can put them to work at Discovery World.Can you lift a log? A boulder? A giant block of ice? A house? Can you lift yourself? Of course you can! Harness the power of mechanical advantage with simple machines.