OKC created an extensive underground tunnel system in the 1970s, connecting major structures
OKC Mayor Patience Latting described the city's underground Metro Concourse network as "the largest pedestrian tunnel system ...
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FAA Calls Oklahoma City's Proposed Skyscraper A 'Hazard To Air Navigation'
An official report from the Federal Aviation Administration (FAA) is standing apart from ambitions to build what would be the country's largest skyscraper in Oklahoma City. The development ...