It's been a bumpy ride these past few years for investors looking for easy ways to make money. Stocks, bonds and real estate have all seen wild swings or simply delivered disappointing results.
But a taxi medallion is one investment that keeps going up in value: Two of them recently sold for a record $1 million each.
A taxi medallion gives the bearer the right to pick up rides for hire. It turns out it's also a great investment vehicle. When New York cab driver Sushil Maggoo bought his in 2003, for example, he paid around $215,000.