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.

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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

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.

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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.

COVID has taken the last year and a half of our lives hostage. There isn’t a day that goes by where you don’t hear someone say, “COVID-19” or, “pandemic”. Today, most TV or radio news has shifted to focus on the COVID-19 vaccine.

Scientists agree that the only way out of this pandemic is to vaccinate a high percentage of the population to achieve herd immunity. The exact numbers required for herd immunity varies depending on who you ask but it believed to be in the percentage rage of 75% to 85%. Vaccines began distribution in the United States in early December and since then, over 266 million vaccine doses have been administered in the general population. These interactive visualizations from NPR.org is updated regularly to show how the vaccine rollout is moving throughout the US.

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There are five different graphs that organize and display the data from the CDC. The first graph uses a U.S. hexagon heatmap. The different shades represent how much of a state’s population is vaccinated. You can toggle between fully vaccinated and those that have received the first dose to see how each state is progressing.

The second graph is a bar chart that shows how many doses have been given, per day, in the US since December 15th. The highest day was April 1st when 4,284,392 doses were administered. Unfortunately, vaccination numbers have trending downward since then.

The third graph down shows a projected chart of when the majority of people in each state will be fully vaccinated. Rhode Island is in the lead projecting 85% of the entire state to be vaccinated by July 10th, 2021. Mississippi is the last state projected to have 85% of the population vaccinated but not until December of 2022. These projections change on a daily basis based on each state’s weekly vaccination rate.

The forth visual is a bubble chart (specifically a clustered force layout) which represents which states lead the race to get their population vaccinated as well as the state’s population size. Maine currently leads the race with 48.7 of their population fully vaccinated.

The final section on the page is a table showing how the vaccine rollout is going in each state. You can toggle between vaccination rates by age (percent of those over 18 and those over 65) as well as the percentage of doses used by each state. Now that vaccinations have been approved for people 12 years and older, this table will likely need to be updated to include those new numbers.