If you're a fan of motorsports, the Grand Prix Museum is a must-visit attraction in Macau. The museum is dedicated to the Macau Grand Prix, which is one of the most prestigious motorsports events in the world. You can see historic race cars, trophies, and other memorabilia from the event's history. The museum also has interactive exhibits that allow you to experience what it's like to be a race car driver. It's a great way to spend a rainy afternoon, especially if you're a fan of fast cars.