The Museum of the Moving Image is located in Queens, New York, in a building that was once a working film studio owned by Paramount. During World War II, the building was used by the Signal Corps for the creation of instructional films (many including animation) for the military.
The museum, which I've visited, is definitely worth the trip to Astoria. In addition to the brick and mortar building, the museum has a web presence that features many interesting articles and dozens of podcasts with movie professionals.
There are three interviews that are animation related: two with Chuck Jones (here and here) recorded on successive days in December 1994, when he was once again working for Warner Bros. creating short films, and one from 2005 with Brad Bird, recorded after the release of The Incredibles.
Jones was 82 at the time of these interviews and he tended to ramble. Several familiar Jones tropes are here, such as his quoting Mark Twain and his screeds against producers. While there are no major revelations in these interviews, it was nice to hear his voice again and to spend time with him.
Bird continues to impress me with his stage presence and his thoughtfulness. The interview with him is excellent.
Don't limit yourself to just the animation-related interviews. There is a wealth of material here including interviews with well-known and lesser-known personalities dating as far back as 1989.