I'm lane swerving because I love my home town.
If you're going to be in St. Louis, you might be interested in checking out these things:
City Garden
http://www.citygardenstl.org/
City Musuem (not really a musuem, more of a playground/art installation)
http://www.citymuseum.org/site/
Restaurants in the Washington Avenue Loft District
http://www.riverfronttimes.com/resta...avenue-246816/
The Loop
http://visittheloop.com/
Central West End
http://www.urbanspoon.com/n/28/2703/...nd-restaurants
Also, the Zoo is free and is one of the top 10 in the country.
http://www.stlzoo.org/
Sunday brunch at the Boathouse in Forest Park is decent.
http://www.boathouseforestpark.com/restaurant.php
If you're into archeology, Cahokia Mounds is a world heritage site.
http://www.cahokiamounds.org/
The biggest mall that is close to downtown is the Galleria in Clayton:
http://www.saintlouisgalleria.com/
Ted Drewes Frozen Custard is a St. Louis institution
http://www.teddrewes.com/home/default.aspx