I lived in Dallas many years ago, almost everyone heads first to Dealey Plaza where JFK was murdered. Lots of great BBQ restaurants and honky tonks. There is some interesting stuff in Ft Worth as well. I would try to catch a Texas Rangers game while I was there, assuming they were playing. Dallas has probably changed so much since I was there, but I am sure the Central Expressway is one place to avoid if you can.
There used to be a lot of interesting clubs and restaurants near where I lived "Singles City" Park and Greenville, in North Dallas off the Central. Dallas is a city that has "dry" areas and "wet" areas. There used to be a really bizarre gay country and western club in the gay area, I forget what they called that area...oh yeah... Oakcliffe, I think.
Wow, I had some really wild times in Dallas in the seventies, come to think of it.