I'll borrow this little description from the museum's website:
"Midcentury Modern Architecture in St. Louis: an Expanded View
Friday, November 13, 7:00 pm
The Farrell Auditorium. Free.
Mary Reid Brunstorm, doctoral candidate in art history, Washington University in St. Louis
This lecture will explore four decades of modern architecture in St. Louis, 1928-1968."
A high point was a discussion on the rise and fall of the famous Pruitt–Igoe public housing projects. You could tell that it was an older audience because multiple times a now non-existent building would pop up on the screen and there'd be lots of oohs and ahhs of recognition.
I found the parts about the popularity of the parabola in modern architecture especially interesting. Here's a few in St. Louis that are at least parabola-ish.
James S. McDonnell Planetarium
Busch Memorial Stadium
The Gateway Arch looks like a parabola but is in fact apparently a catenary. If you hate yourself click that link to learn the difference.