These are the Rio medals first thing you notice is they say what Olympic Games they come from. Yes. Every Games have their own medals. The coming photos will show you how the Rio medals are made, and will give you a little trivia.

The winners at the 1900 Olympics received trophies or cups instead of medals. A woman that won the Golf Tournament there did not know she competed in the Olympic Games.

The custom of awarding gold, silver, and bronze medals started at the 1904 Olympics.

The last Olympic gold medal that was actually made from gold was awarded in 1912.

After the 1912 Olympics the gold medals have been gilded silver rather than real gold.

Although the Olympic gold medal is more silver than gold, there are gold medals that are really gold, such as the Congressional Gold Medal and Nobel Prize Medal. Before 1980 the Nobel Prize medal was made from 23 carat gold. Newer Nobel Prize medals are 18 carat green gold plated with 24 carat gold.

So, if Olympic gold medals aren't gold, then what are they? The specific composition and design of Olympic medals is determined by the host city's organizing committee. However, certain standards must be maintained.

Gold medals are 92.5% silver. But...

...must be plated with at least 6 grams of gold.

All Olympic medals must be at least 3 mm thick and at least 60 mm in diameter.

The material used for Silver Medal must be at least .925 silver.

Bronze Medal is mostly copper with some tin and zinc,worth approximately $3.

The cost of making a Silver Medal is less than $300, and Gold medals is worth $600.

If the Gold Medal was pure gold it would be worth about $25k

It's worth noting that gold, silver, and bronze medals have not always been awarded. At the 1896 Olympic Games, the winners were awarded silver medals, while the runners-up got bronze medals.

As you can see the creation of these unique medals is not an easy thing, but their true value is the deed of breaking your limits and overcoming your weaknesses. Go athletes!