5 /5 Becca M: I always enjoy a visit to Reunion Tower on a pretty day.
Tickets can be purchased in advance online, at a kiosk outside the entrance (inside the Hyatt), or by scanning a QR code from a banner. Theres a large lot across the street.
The downtown views of Dallas are fantastic from the observation deck. There are telescopes outside; views, seating, restrooms and vending machines inside. There are also interactive screens that help identify points of interest, which I found very helpful.
You can purchase a souvenir photo or souvenirs once back down the elevator.