Designed by Chinese-American architect I. M. Pei and looking for all the world like a giant snail inching its way out of the Outer Harbour, this cone-shaped museum does an excellent job of explaining how technology and science relate to our daily lives, making it a great educational experience for families. Its hollow core features a spiraling ramp that leads to 14 galleries devoted to space science and exploration, ecology and conservation, robotics, sports, food science, and more, with most of the exhibits hands-on. There's a section just for kids, like the Fun Science Gallery geared toward children 2 to 7 years old, where they can wear hardhats as they push wheelbarrows, work a crane, and climb. The Children's Science Gallery lets kids accomplish various tasks relating to water, electricity, and more. Other galleries explore what it's like to be an astronaut, let kids and grownups build their own robot, describe extreme weather conditions from typhoons to tornados, explain how to conserve energy in daily life, and let people test everything from heart beat to blood pressure. There's also a sophisticated 3D planetarium. You can easily spend a couple hours here, but unless you're escaping bad weather or have children, be sure you've seen Macau's highlights before coming here.