The actual location was not really that close to Union Station, but one does not know that until after the reservation is made and the drop-off location is revealed. Also, there was no clear and obvious entry to the drop off location. It was not until someone walking by chance had knowledge of the place and said here is the door that lead to the elevator (drop off location 2nd fl), but the door was locked. It was at this time someone who worked there happened to walk outside and said they would unlock the door for our entry. Again without of these people there was no discernible way to ID the entry point of the drop off location.