I have family that lives in Dallas Texas. It's so hot there right now. 
Yeah its the 4th most populous metropolitan area in the US. 
Yeah i'ts a huge area and takes over an hour to drive across the entire metroplex. I heard even just the DFW airport was the size of Manhattan. 
And a lot of people go through it! In 2017 over 67,092,224 passengers went through DFW. 
Wow that's a lot of people. 
Yeah and Dallas is a pretty big city too. Its the 9th most populous city in the US. 
That is massive. Are there any famous landmarks or sights in Dallas?
There are several important historical sites as it was the center for the oil and cotton industries and it's position around railroads. 
Oh that's interesting I guess the only famous thing that comes to mind is the JFK shooting and I feel like that is more infamous than actually famous.
That may be but people don't seem to mind. Dallas is the fastest growing city in the US