REWIND: For decades, the Dallas Underground tunnels remain largely a secret

Buried beneath the ground for nearly 50 years, a piece of Dallas history has remained largely, and literally, overlooked by the people who live and work downtown.
The Dallas Pedestrian Network, or the Dallas Underground, connects many downtown office buildings and is home to several stores and restaurants while providing an escape from weather and traffic on the surface.
If you walk the tunnels today, you will find some stores and eateries, but also plenty of empty space.
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