While on his honeymoon in 1825, British geologist William Buckland inspected and identified the bones at the shrine of St. Rosalia in Palermo, Italy as goat bones and not the bones of an adult female. The goat bones are still on display today.
– WTF Fun Facts
Source: https://www.vice.com/en_uk/article/jmbwzg/the-weird-and-fraudulent-world-of-catholic-relics-456