Construction is underway for DIA’s new south terminal project, with revised designs. With a budget cut from $650 million to $500 million, original Spanish architect, Santiago Calatrava pulled out of the project. However, his general design lives on albeit with some scaled-back revisions. The two largest features will be a new hotel as well as an RTD light rail platform. The terminal is due to be completed in 2015. Denver International is the 5th largest airport in the US and 10th largest in the world in passenger traffic. See the slide show of the previous and new designs here.