The team at Kylar Mack shows us just how valuable the world’s most precious metals are with this illustrated chart visualizing the cost per ounce of the most expensive metals and alloys. A metal is naturally occurring, and many appear on the periodic table of elements whereas an alloy combines two elements.

On this illustrated chart, we can truly visualize the comparative value of these metals because the team stacked money representative of the value beside an image of each metal. The chart is a great example of the power of visual data. Our eye is immediately drawn to the vast stacks of cash beside the most valuable metal, Californium. These stacks tower above ever other metal on the chart making it clear that not all metals are created equal.

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Californium’s value is a shocking $765,436,299 per ounce! That’s significantly higher than the second-most popular metal, a non-synthetic called Iridium, which is valued at $4,700. The key to the value difference lies in the fact that Californium is a synthetic substance. It’s created in a nuclear reactor and only two plants in the world have the capability of engineering it. As for Iridium, it’s naturally occurring but hard to mine and access. It’s found deep under the Earth’s crust, often attached to asteroids. Through this chart, we can learn more about different metals as well as why they’re so highly valued. Many are needed for key electronics and aerospace parts.

Spam calls are a widespread problem that can be a nuisance or leave important information vulnerable to scammers. This map from Ooma shows us that although spam calls are widespread, they seem to have concentrated hot spots around the nation.

The Ooma team used data from the Federal Communications Commission to pinpoint where the highest number of spam calls are occurring. The data is based on the number of spam call complaints the FCC receives per capita. The team highlighted each city with the highest number of calls and shows in a graph below the map how many spam calls complaints are received per 1,000 people. The map is a detailed look at where spam calls are concentrated, giving us an interesting look at the data. If you live near one of these hot spots, be wary of answering the phone.

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These were the cities that had the highest number of spam call complaints per capita:

1. Alexandria, Virginia: 22.84
2. Pittsburgh, Pennsylvania: 18.75
3. Orlando, Florida: 18.52
4. Miami, Florida: 17.58
5. Atlanta, Georgia: 16.39
6. Las Vegas, Nevada: 16.12
7. Knoxville, Tennessee: 15.18
8. Plano, Texas: 14.91
9. Washington, District of Columbia: 14.46
10. Columbia, South Carolina: 14.44

Alexandria, Virginia, tops the list with the highest number of spam call complaints. The city has received so many that local police have had to put out spam call warnings and prevention tips. Seeing such high concentrations of spam calls definitely leads to interesting questions about why these areas might receive more calls than others.

Be sure to check the map carefully and take note of whether your area is near is near one of these locations.

Yachts and big boats are flashy and so is this colorful chart from the team at SI Yachts ranking boat and yacht manufacturers by how much revenue they earn per second. Yachts are undoubtedly a status symbol, so this ranking of manufacturers only adds to the prestige of the boats they sell.

The graphic is plenty colorful, showing us images of the type of boat each manufacturer is known for along with their logo. The team ranked each brand by how much revenue they earn per second and also broke down how much they earn in a year, as well as listing the company’s country of origin. The result is an illustrated parade of top boating and yachting brands.

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Boat enthusiasts have a lot of brand loyalty, but they’re also on the lookout for rising brands or the latest or most exciting boat models and features. This infographic displays all the brands that yachters should be paying attention to. Do you see any brands you don’t recognize on the list?

Their results show us that the top selling brand was Italian mega yacht manufacturer, Fincantieri, earning an incredible $266.99 per second or 8.42 billion a year. The brand is closely followed by American manufacturer, Brunswick Boats who earn $202.94 per second or 6.4 billion a year. These are the only brands that slotted into the graphics over $100 a second revenue category. Explore the details of all these great brands and maybe even research their bestselling models.