Each and every one of the New York City museums is worth visiting. It is impossible to visit all of them during just one trip. For planning purposes, a visit to one museum will take at least 3 hours, but more likely will end up being 4-6 hours, so it’s best to visit different museums during several trips to New York City.
Many museums operate on the “Suggested Admission" basis. This means you can pay as much as you would like to (even a dollar). But please remember that the admission fee is the money used to support the museums in a good shape and bring new exhibits.
For example, The Metropolitan Museum of Art works on the "suggested admission" basis. With nearly two million works of art spanning more than 5,000 years, The Metropolitan Museum of Art is one of the world’s largest and finest museums, presenting the best of human creativity from around the globe. From the splendors of ancient Egypt to the spectacular New American Wing, inspiring treasures from the Greek and Roman world, beloved Impressionist paintings, and the latest in contemporary art, a world of great art awaits you at the Met—New York City’s most-visited attraction.
The Museum’s renowned global collections, some 30 special exhibitions a year, and an array of public Guided Tours are all free with admission. Also, the Met Audio Guide offers a low-cost option of more than 75 hours of informative audio commentary available in 8 languages, developed by curators and educators.