I second everything everybody has already said. Speaking as an East-Coaster in OK, I predict you will discover that it sucks. The trees stop in eastern OKC. It’s hot right now (100+) but not really humid. If you’ve been anywhere between Houston and Boston during the summer, it’s nothing. Amarillo is probably too far to drive alone, you may fall asleep from the lack of stuff to look at on the way. In OKC, the museum of art downtown is fairly small, but it has a big Chihuly gallery if you like glass. The Cowboy Museum is nice enough if you concentrate on the actual artifacts and ignore the bad modern day western art. The mueum of natural history in Norman is also nice, if small. There is another art museum in Norman, but I can’t remember the name. You can easily see all four museums in a day. The zoo is nice, if small. I’d avoid Bricktown during the day as it’s entirely restaurants and bars, mostly chains. The stockyards (the actual yards, not the 2 blocks of cowboy hat stores near them) are probably unlike anything you’ve ever seen, but not in a pleasant way. There’s a surprisingly large Vietnamese community around Classen and 23rd or so, with a large supermarket, but you’ve seen people shopping before and I doubt your are here to stock up on groceries, so not much excitement there. There is a windfarm with huge turbines near Weatherford (90 miles west), which is impressive, but not for more than a few minutes, you will see it from I-40 depending how far west you drive for your meeting. If you drive on I-40 at night, especially in western Oklahoma, you’ll see rig lit up and drilling, maybe burning a flare if you’re lucky. Tulsa is smaller and nicer/more hip than OKC, it has several art museums and is about a hour and a half away. Dallas/Fort Worth is the Texas version of a typical large American city with some good museums and shopping, and much better food than OKC, particularly on the Ft. Worth side, but if you don’t have a specific goal, it’s probably too far for a day trip. If you are into disasters, go to the bombing memorial, or go if you are into seeing tourists get all weird about complete strangers’ tragedies. Some things you’ve probably never seen before: bowls of melted cheese set out the chips and salsa at “Mexican” restaurants; 3.2% beer at supermarkets (wine and regular beer is only sold at liquor stores, warm); churches the size of aircraft hangars; an enormous cross at the 2nd street exit on I-35 in Edmond; a reservoir (Lake Hefner) where you can power boat and windsurf, but not swim.