The first dinosaur discovered in this state is mounted and on display at this merger of what used to be the Dallas Museum of Natural History and The Science Place. Interactive exhibitis explore ecology and scientific principles. In Hands-On Physics, children learn to lift a 1,000-pound steel ball; in a medical gallery, visitors use microscopes to study bacteria and viruses. Dallas: A Unique Place in Time is shown before every feature in the IMAX theater. Less than a block away is The Science Place Planetarium.