I visited Adler Planetarium on Museum Day with sponsored ticket from Smithsonian Magazine. While it is the first planetarium in western sphere, it is still kind of modern for the architecture for the building, especially the dome. They have various telescopes, some of which you can take peek at it to see the "moon". The hot spot for the kids is that simulation for the strike of meteor. It needs wait for two minutes to make a shot. The most challenge one is the space landing game. You become a pilot of space craft and need control the joystick to make a smooth landing. I observed and tried, found that few of us amateurs had successfully land the vehicle. I will try again next time.