Near what was the terminus of the transcontinental and Sacramento Valley railroads, this 100,000-square-foot museum is a recreation of the original train station and roundhouse. There are 21 locomotives and railroad cars on display along with dozens of other exhibits. You can walk through a post-office car and peer into cubbyholes and canvas mailbags, enter a sleeping car that simulates the swaying on the roadbed and the flashing lights of a passing town at night, or glimpse
inside the first-class dining car. The room containing the gold "Last Spike," one of two cast in 1869 to commemorate the completion of the transcontinental railroad, is quietly compelling. Kids have lots of fun at this museum, especially in the play area upstairs. You can visit an original roundhouse, not just a replica, at Railtown 1897 in Jamestown, near Sonora.