Meet me in St. Louis

A call-out to current and former residents and enthusiasts of St. Louis:

Silly Misanthrope and I are visiting St. Louis (and Columbia) at the end of the month for a long getaway weekend. We're staying in the Lafayette Square neighborhood Friday through Sunday, and will take a day-trip to Columbia on Saturday.

What's your favorite thing to do in St. Louis? We'd love to know.