You might be surprised that the states with the most land don’t necessarily have the most national parks or state parks. This interactive map and visualization from Playground Equipment gives you a rather interesting look at not only which states have the most and least amount of national parks and state parks, but which states have the highest and lowest percentage of land coverage for these parks across their states.

Click below to zoom

While it may not be the biggest state in terms of size, it’s actually Hawaii that can claim being the state with the highest percentage of national park and state park coverage. Of Hawaii’s 4.1 million acres across the state, 9.41% are covered by either national parts of state parks. There are 50 state parks in Hawaii that span 30,000 acres collectively, with the state’s two national parks covering up 358,870 acres of land.

In comparison, Kansas has the lowest percentage of their overall land dedicated to state parks or national parks. In Kansas, only 0.06% of the state’s 52.6 million acres are covered by state parks or national parks, despite the state being home to 26 state parks. There are zero national parks in Kansas.

California, New York and Washington are the only three states across the country that have more than 200 national parks. Of the 3,729 state parks across the United States, 1,083 (29%) of them are within California, New York, Washington, Oregon and Florida. These are the ten states across America that have the most state parks.

1. California: 270
2. New York: 215
3. Washington: 212
4. Oregon: 195
5. Florida: 191
6. Massachusetts: 154
7. Illinois: 142
8. Pennsylvania: 121
9. Alaska: 119
10. Connecticut: 109

California also has more national parks than any other state. Nine of the 61 national parks (14.75%) are located across 6.3 million acres in California. These are the states that are home to the most national parks across the United States.

1. California: 9
2. Alaska: 8
3. Utah: 5
4. Colorado: 4
5. Arizona, Florida and Washington (tied): 3

Today, the national debt of the United States of America stands at an eye-watering 28 trillion dollars and rising. The CARES Act of 2020 and other stimulus bills due to COVID have added massive increases in a short period of time. To see how we got to this place to being with Visual Capitalist has this great interactive timeline of US debt over the past 150 years.

Click below to use the interactive version

Starting in the year 1900 only 4.8% of the total national debt was held by the public. After World War I in 1910 that percentage jumped to 10. In 1920 following the Great Depression that number doubled to 22.9%. Ten years later that number would be in the billions, 16 billion to be exact with President Roosevelt’s New Deal in 1930. World War II would see this number jump to 40 billion or 75.1% of the GDP. The Korean War of 1950 would add hundreds of billions to the debt clock in only ten years bringing the total in 1950 to $257 billion but bringing the GDP down to 56.8%. The next big increase would come in 1980 when president Reagan introduced his tax cuts causing the gross debt to jump to over 900 billion. Ten years later it would see another massive jump to over $3,233 billion dollars with the Gulf War. Thirty years later the COVID-19 pandemic caused the average debt held by the public to sky rocket to 105.6 percent in 2020 , over $27,748 billion dollars. By 2050 it is estimated that the percentage of debt held by the public will be almost 200 percent.

When it comes to royal and aristocratic families throughout Europe, you might be surprised to learn that many of these families (even those that are ruling countries hundreds of miles apart) share numerous common ancestors. This amazing interactive visualization from Nadieh Bremer lets you navigate through these outrageously interconnected family trees. She has done the painstakingly delicate work of laying out all of these ancestral connections in a way that allows you to connect familial relationships over a one thousand year period.

Click below to see the interactive visualization

This incredible interactive chart begins at the start of the 11th century and consists of thousands of colored dots, that each represent a person, that can be clicked on to reveal connections to others who came both before and after them. At the top of the chart is ten of the current monarchs and leaders of royal families in Europe. Each and every one of them can be tied back to ancestors that they have in common.

In the days before much was known about incest, royal families would marry off young men and women to cousins, aunts, uncles, and even siblings. Queen Elizabeth II is even related to her late husband, Prince Philip; they’re 3rd cousins! There are many different reasons why royals married within their own clan. These included increasing territory and power, creating stronger family ties, and so on. What they didn’t know then is that inbreeding can lead to some serious genetic disorders. Hydrocephaly and Habsburg jaw were just two of the common disorders that can be attributed to inbreeding. Ferdinand I of Austria had both. Blood disorders like hemophilia also wreaked havoc in royal families, and has even led to the end of empires.