Bãi đá phát âm thanh như kim loại
Bãi đá rộng nằm trên một ngọn đồi ở Mỹ có thể phát ra âm thanh như kim loại mà không rõ nguyên nhân.
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4buQROG7tOG6sMOdQ+G6sOG7guG7oOG6sOG7tOG7kENQ4buQ4bqwUOG7kCXhurDhu6Lhu5Lhu6DhurDhu55RReG7kuG7tcOBL1jDgMOBWOG6sMOM4bueQ+G7suG7suG7seG6rljhuqNR4buKKOG6rsOA4buT4buQxKhR4bqwc+G7hcSoIVjDncSo4buy4buyw4EvWMOA