For the first time, 2 commuter rail cars, under their own electric power, entered the station at the airport. The test marks one of the final stages before the East Rail Line opens to the public in mid 2016.
Denver International Airport
More than 53.4 million passengers passed through Denver International Airport in 2014, making it DIA's busiest year on record.
The project consists of a light rail station and a 519-room hotel, which was originally projected to cost $500 million back in 2011.
Last week, the aircraft stopped in Denver for cleaning after it carried the nurse between Cleveland and Dallas.
The new space will connect the iconic Teflon-covered Jeppesen Terminal to a new hotel and transit center.