#10 Japanese Yen
Even though the Japanese yen (which translated literally means “round object”) is one of the world’s reserve currencies, it is worth very little money. You’ll only need US1c or less to buy 1 JPY, while US$1 will get you around 119 JPY. The JPY first declined after the so-called “Japanese asset price bubble” that artificially inflated stock and real estate prices in the 1980s and 1990s. It reached a new low in 2002, and has continued to weaken against the US dollar ever since.