Travel By Train. Looking out form the dome lounge of Webb Rail's former Northern Pacific Railway Budd built Pullman dome/sleeper 313 (WEBX 801044), the famous sign on Denver, Colorado Union Station suggests that we do exactly what we are doing on July 29, 2020! With Amtrak Train 6 (California Zephyr) already in the the station, the cars would be departing shortly for Chicago, Illinois. More on the Webb Rail fleet at www.webbrail.com