Historic Union Station in the heart of downtown has undergone extensive redevelopment and features an open-air train hall behind the refurbished historic building, where passengers once again can hop aboard the California Zephyr as it stops in Denver on its runs between Chicago and San Francisco.
RTD's Light Rail service's six lines and 47 miles of track links southwest, southern, and northeast Denver to downtown, including new service from Union Station. The peak fare is $2.25 within the city limits.
Amtrak. Union Station, 1701 Wynkoop St., Denver, Colorado, 80202. 800/872–7245; www.amtrak.com.
RTD Light Rail. 303/299–6000; www.rtd-denver.com.