Get the best views of major Texas cities without boarding a plane. Dallas, Houston and San Antonio are all homes to impressive observation decks that tower hundreds of feet over the cities. Here are three observation decks offering magnificent 360 views:Reunion Tower300 Reunion Blvd E, DallasSitting at 561 feet in the air, Reunion Tower offers a panoramic view of downtown Dallas. SpindletopHyatt Regency Houston, 1200 Louisiana St., HoustonTo enjoy this 360 view of Houston, youll have to dine at the Spindletop the revolving restaurant that sits atop the Hyatt Regency Houston. What observation decks have you visited in Texas?