I will be in Chicago in February to attend a wedding and have one free night. We're staying near the airport, but are willing to go downtown by train. If there are any good places in between the airport and downtown, that's great; if not, we'll go downtown. I'm looking for a place that is mid-priced, with an eclectic and adventuresome menu. Preferably not a specific type of cuisine like Asian or Italian, but more of a continental menu. Any suggestions are appreciated.