Attracting millions of people each year, the Smithsonian National Air and Space ... Einstein Planetarium. And parents beware: The gift shop is huge, so get ready for pleas from your kids. The ...
Today, the Boeing 247 is rarely talked about, as it sold 75 copies compared to over 16,000 Douglas DC ... all Air and Space Museum visitors. In addition to the main museum, the Smithsonian also ...