It was worth one trip to The Atomic Testing Museum but unless they do a major revision I won't go back.
They had a lot of information about atomic testing but in terms of actual artifacts they were kind of short. Especially artifacts from the Nevada Test Site. For instance, soldiers who witnessed nuclear tests were given certificates. Thousands of soldiers saw the tests. .They can't track down one certificate to put on display?
Also, this is the age of "Avatar" and really good special effects. The videos are fairly recent (there's references to 9/11) but the quality is mediocre. I would hope they get around to recording some of these people who were at the test site in high definition before they die.
A lot of people don't know much about nuclear testing and this is a good place to learn.