The Museum of Transportation was founded in 1944 and was at one time an original mainline of the Pacific Railroad. It was one of the first railroad tunnels west of the Mississippi River. The tunnel and depot are now on the National Register of Historic Places. With over seventy locomotives that visitors can look at and climb aboard, the museum has the most complete collection of American rail power anywhere, and its collection of automobiles, buses, streetcars, aircraft, horse-drawn vehicles and river boat material reflects the ever-changing nature of transportation. Guided walking tours and rides on the miniature Abbott Railroad (in season) are all part of the fun. There is a concession stand and gift shop of transportation memorabilia.