Japan used to be called "Jipang" by westeners, and Malcopolo introduced it as the land of Gold, Jipang in his book, "Le Livre des Merveilles". (http://en.wikipedia.org/wiki/The_Travels_of_Marco_Polo)
He acctually didn't come to Japan, but he must have heard about maybe "Kinkakuji-temple"(http://en.wikipedia.org/wiki/%E9%87%91%E9%96%A3%E5%AF%BA), or "Chusonji Konjiki-do"(http://www.chusonji.or.jp/guide/precincts/konjikido.html), which are both decorated with Golden Leafs.
I went to Kanazawa one day, and visited a very interesting museum called "Hakukokan". It is a museum about Kanazawa gold leaf(http://en.wikipedia.org/wiki/Gold_leaf). Kanazawa is famous for Gold Leaf production.
Golden "Yoroi Kabuto"
1/3 of 10 yen becomes......
One tatami size of gold leaf!!!