The National Museum of Natural and Human History of the United States is now open on three floors. It has more than 100 million exhibits. It has a huge amount of information, mostly animal specimens and gemstone minerals. The first thing to come into the museum is a specimen of an African elephant, which is the largest elephant found in the world. Of course, the most eager thing to see is the second floor gemstone mineral exhibition hall, all kinds of rare treasures bright and blind eyes, beautiful and shining, noble and luxurious.