I am always amazed with the many museums that constitute the Smithsonian. The American Museum of American history is amazing
The Smithsonian Institution is the most important research institution and academic institution in the United States and the world. The space between Washington from the Lincoln Memorial in the west and Congress in the east is basically museums, especially natural history and space museums.
The Smith National Museum is also a huge institution. This museum complex is a very distinctive site. The national museum is also a huge facility. The complex itself is also very historic.
If you are a museum owner, the Smith National Museum is enough for you to visit the National Museum for two or three days. The Aerospace Museum, News Museum, etc. are all here, and there are Chinese language guides, which is very convenient.
The Smith National Museum Group should be the most densely populated area in the world. It is sponsored by the Smithsonian Association. Most museums can be admitted free of charge. There are many types of museums and a rich collection. You can arrange a visit here for a few days.
Preston_Dominguez: Washington, DC
Jeremy_Dodson: I recommended The White House,Washington Monument,Lincoln Memorial,United States Capitol,National Air and Space Museum