Library of Congress (国会）is in the United States. This library is the largest library in the world. It is 3 stories high and the book shelves in it are 500 kilometers long.
Resources
The library has a large collection of resources like newspapers，magazines, CDs, videos and CD-ROMs. There are also many rooms for people to meet each other or listen to music. It also has a language learning center. It gets 2,000 questions a day, and some can be answered in a few minutes. Some need more time, sometimes a few months. All workers in the library use computers to help them.
How to join
If you are a middle school or above, then you can come to the library and fill in a form. Don't forget to bring your ID card. You must be an American and live in the United States.
If you have time, come along to America and take a look around for yourself!
