I recall one trip to Dallas not giving me the best impression of it.
A forumer here and myself were up there for personal business of his. The appointment was on the 65th floor of Bank of America Plaza. So we park in downtown, walk the 2 blocks around the corner to the building. Enter the building, cross the
very public lobby and head for the elevator bank. This 5 foot nothing security guard hollers, "Excuse me, sirs!" We just keep walking because the place had a lot of people in there so we had no idea the guy was talking to us. So he says again louder, "Hey you guys, hey you two!" I look back to see what the commotion is and he's trying to get our attention. So I mention that he's calling for us. Well, the braver of the two SSP forum members in the building that day, (not I), said: "Just ignore him and keep walking."

So we go on to the elevators. Anyway, he catches up with us wanting to know where we're headed. We give him the name of the company, he replies that they're not a tenant in the building anymore. My friend says, that they actually are and he had indeed called them before we left Austin that morning. Anyway, he says very well and lets us go on up. So we get up to the office, and while we're waiting sitting in the office, another security guard strolls past the office and glares in. We mention all this to the secretary that their security guards are bit anal. Anyway, we get done in less than 30 minutes and of course being respectable skyscraper geeks, we head for higher floors hoping for an available window for some views. None were found, except one through a locked office. Not much to see, except snaking highways 850 feet below. So we head back down to the lobby to leave. As we walk across the lobby the short security guard gives us another look like, "How dare you!" and we keep going. As we walk out the main entrance into the plaza there are
two Dallas police cars sitting infront of the building that were not there when we got there.

We left downtown and hit up a barbecue joint, (Sonny Bryant's). So yeah, that was my first encounter of downtown Dallas.
Of course this isn't really reflective of Dallas, just one a-hole with a flashlight and keys.