In 2006, the All-Japan Tower Association established the Observation Day, which falls on October 1. It was created from the Japanese word “tenbou,” which means “observation” in English. The beginning sound of “tenbou” is ten, representing the tenth month, and “bou” sounds like “stick” in English, which resembles the number “1.” On October 1 (Observation Day), towers across the country offer an array of special offers.
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