In the very heart of Tulsa, in the USA, lies a surprising attraction known as the "Center of the Universe." It is not a grand structure, but a modest-looking section of a pedestrian bridge: a small dark circle on the pavement surrounded by a wider concrete ring and planters of varying heights. This spot attracts the curious with its unusual acoustic mystery.

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The peculiarity of the "Center of the Universe" lies in its unique sound effect. When a person stands exactly in the center of this circle and begins to speak—even in a whisper—their voice reflects off the surrounding concrete structures in such a way that it creates a loud echo that only they can hear. Meanwhile, people standing just a few steps outside the circle do not hear this amplified sound, creating the impression of a true "acoustic bubble."
This acoustic anomaly is located northwest of the old Union Depot, which now houses the Oklahoma Jazz Hall of Fame, and north of the Williams Center Tower. Despite its intriguing name, the "Center of the Universe" is more of a local tourist attraction offering visitors a fun and interesting experience rather than an object of cosmological significance. It is a great place to surprise yourself and your companions with an unusual phenomenon.