The Museum of Science Fiction is a Washington, D.C. based project to

build a museum, an experience that does justice to the breadth and richness of science fiction history, where we preserve that history in perpetuity and inspire visitors to embrace the genre and its ideas. As a first step, we are developing a 3,000-square-foot preview museum where we can test exhibit concepts and new interactive technologies to share a real-time look into this grassroots effort. We have begun our site selection process. We expect to open the full-scale facility within 24 to 36 months.

Here is a video about the museum

Seattle’s EMP Museum “Music + Sci-fi + Pop Culture”, founded by Paul Allen, now includes the former standalone Science Fiction Museum and is referred to as the  “Science Fiction Hall of Fame”.