I was thru here in September and man oh man... pardon me while I whip this out...images + addresses copied and pasted from my nerd trip itinerary
first you got Lauridsen on the northside/downtown river walk. 901 2nd Ave, Des Moines, IA 50309

its pretty chill in the morning but it looks like this image or worse later
look at these fuckers, You gotta go fast, and you stick out like a sore thumb... for sure a bust till later or the weekend
1506 Locust St, Des Moines, IA 50309, USA

Similarly is the Neal Smith Federal Building, EXCLUSIVELY after business hours spot. I looked, it was too hot for my liking but you might be bout it bout it 210 Walnut St, Des Moines, IA 50309, USA
And if you do make it to KC hit this place up (4198 Kenwood Ave, Kansas City) good morning warm up spot but also very memorable and fun.

