It may look like loose change - but it all adds up.
Famous fountains around the world, it turns out, are raking in millions of dollars from coins tossed into their waters by tourists hoping it'll bring them good luck.
The famous Bellagio fountain in Las Vegas, for example, raked in $12,000 (£8,481) in one year, while Rome's Trevi Fountain made over $1million (£707,638) in 2011.
Here are some fountains around the world that make a very healthy income from tourists' extra coins - though many do give the cash to charity.
The money from the Roman fountain is removed daily, and can generate over $3,200 (£2,264) a day.
In 2016, an estimated €1.4 million (US$1.5 million) was thrown into the fountain. The money has been used to subsidize a supermarket for Rome's needy; however, there are regular attempts to steal coins from the fountain, even though it is illegal to do so.
There has been a crackdown on thieves in recent years after a television show used a hidden camera to record three men sweeping coins from the fountain with a broom.
The fountain at the junction of three roads (tre vie) marks the terminal point of the "modern" Acqua Vergine, the revived Aqua Virgo, one of the aqueducts that supplied water to ancient Rome.
In 19 BC, supposedly with the help of a virgin, Roman technicians located a source of pure water some 13 km (8.1 mi) from the city. (This scene is presented on the present fountain's façade.)
Coins are purportedly meant to be thrown using the right hand over the left shoulder. This was the theme of 1954's Three Coins in the Fountain and the Academy Award-winning song by that name which introduced the picture.
There is a garden rake beside the door.
First, rake the soil smooth.
而文中的 rake in sth. 是个固定用法，表示“大肆赚钱”、“赚大钱”：
The movie raked in more than $300 million.