Why are Switzerland's sewers filled with gold?

If you don't mind getting your hands a little dirty, head to Switzerland... their sewers are literally teeming with gold!

A new study commissioned by the Federal Office for the Environment reports more than $3 million dollars worth of precious metals are found annually by more than 60 wastewater treatment plants.

SEE ALSO: Treasure hunter finds 600-year-old gold rings

SEE ALSO: Where's the best place to look for buried treasure?

That means 95 pounds of gold and 6,600 pounds of silver are wasted each year.

Sadly, scientists say the precious metals aren't worth recovering, but in some areas of southern Switzerland where there are several gold refineries, "concentrations of gold in sewage sludge are sufficiently high for recovery to be potentially worthwhile."

The U.S. also potential has another gold rush on its hands.

A 2015 study estimated $13 million in gold could be recovered from the waste of one million Americans a year.

The study says those metals are coming from hair care products, detergents, and socks.

But for all those metals floating around in sewage systems, according to the Swiss study, it poses no harm to mother nature. Which brings a whole new meaning to the word 'golden throne,' just wash your hands.

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10 incredible auctions
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10 incredible auctions

The most expensive watch ever sold at auction fetched just under $24 million in November 2014. The gold pocket watch was made by Patek Philippe, and is the most complex ever made without the use of computer technology.

The Henry Graves Supercomplication was commissioned in 1925, and took eight years to make.

The world's most expensive stamp sold at auction in 2014 for over $9 million.

The British Guiana One-Cent Magenta is as rare as a stamp can get. British Guiana was one of the first countries in the New World to start issuing stamps, but in 1856, they ran out, and asked the local newspaper printer to produce extras.

There were two denominations: the four-cent, which is very rare, and the one-cent - of which only one has ever been discovered.

In May 2015, an anonymous London businesswoman snapped up the licence plate KR15 HNA for £233,000, making it the most expensive standard number plate ever to be sold in the UK.

Queen Victoria's bloomers sold at auction for £6,200, along with a pair of her silk stockings.

They have a 52-inch waist, and belonged to the monarch in the 1890s - "towards the end of her life when she had eaten a lot more than most people could afford to," said auctioneer Michael Hogben. In today's sizing, they'd be a size 26.

In 2014, a three-year-old slice of cake sold at auction for $7,500 (£4,800). The reason the stale cake was in such demand was that it was from the marriage of Prince William to Kate Middleton in 2011.

The buyer said he intended to give it away as part of promoting his Silicon Valley start-up.

A British coin sold at auction for a record-breaking £430,000 in 2014. After fees, the buyer paid £516,000 - making it the most expensive modern British coin ever to be sold.

The coin is only one of two in existence. It was a 'proof' for a gold sovereign which was meant to be produced to commemorate the coronation of Edward VIII in 1937. However, Edward abdicated in 1936, so the coronation never happened and the coins were never made

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