Located in downtown Tulsa, the Center of the Universe if an 8-feet concrete circle described as an "acoustic anomaly" by Travel Oklahoma. Noises made inside the brick circle is loudly echoed ...
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10 must-see places in Oklahoma to add to your travel bucket listOklahoma, also features hiking trails and reservable RV and tent camping sites. A mysterious acoustic phenomenon takes place in downtown Tulsa, known as the "Center of the Universe," marked by a ...
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