The museum is dedicated to Thomas Alva Edison and his inventions and innovations, the museum interprets Edison through interactive exhibits while using more than 60 historic objects. The museum offers visitors insight into Thomas A. Edison – America’s Greatest Inventor. Located in the historic Travis Street Substation building, there are more than 1,400 artifacts in our growing study collection and an expanding reference library. The museum is the only facility of its kind west of the Mississippi River.