Dysonのインスタグラム(dyson) - 8月14日 23時40分

Starting around 3000 BC, bluestones were transported over 160 miles to Stonehenge, without the aid of carts or wagons—because wheels hadn't been invented. This monument might be one of the most mysterious engineering feats known to man. How do you think it was built? #fanscapes #engineering #stonehenge

[BIHAKUEN]UVシールド(UVShield)

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