The throat of Denver Union Station is busy with RTD electric commuter trains coming and going, with trains on the A Line to the airport (on left) and trains on the G Line to Wheat Ridge (on right)... (more)

A RTD (Regional Transportation District) A Line commuter train passes Coors Field, home of the Colorado Rockies major league baseball club, as it approaches the 22nd Street/Park Avenue overpass at... (more)