Given that's a transit hub, Union Station is open 24/7 and free to enter, though the Great Hall is closed for cleaning daily from midnight to 5:30 a.m. For additional information, such as details ...

This historic train station is a Colorado monument boasting exceptional food options and luxurious accommodations that will have travelers saying, "All aboard!" ...

Not great, but nothing disgusting ... It will take years but, eventually, Union Station could take the crown from the Moynihan Hall in New York for pure station greatness. Go deeper ...