I believe Robata's closed for good about 6 months ago.
http://stlouis.citysearch.com/review/5769070
If you have kids you really should go to the City Museum - the place is absolutely nuts. Pay extra for MonstroCity it's worth it.
http://www.citymuseum.org/home.asp
I have a long driveway that can accomodate your trailer. I live about 8 miles from the Arch and 3 from the Hill on the central corridor.