Harriman Dispatching Center, Nebraska

The dispatching center, called the bunker by some, is Union Pacific's rail traffic control headquarters, where the movement of over 850 trains and nearly 23,000 miles of track all across the country is controlled and monitored. It was built in a former freight depot building in 1989, and employs over 750 people, around 60 of whom are dispatchers who work in the bunker itself, watching a series of 172 screens that is two football fields long, that show every switch and signal track on UP's lines. The headquarters for Union Pacific is located nearby in downtown Omaha.