| 401. | What Causes the Northern Lights? | 1,947 | |
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| 402. | This Is The Most Valuable Treasure Ever Found | 1,947 | |
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| 403. | History's 10 Deadliest Dictators | 1,947 | |
|
| 404. | The Sinister Effects of the Scariest Sleep Disorder | 1,937 | |
|
| 405. | Sci-Fi Has Taken Over Real Life... Are You Ready? | 1,928 | |
|
| 406. | Meet the People Who Build Ugly Houses Just to Get Revenge | 1,923 | |
|
| 407. | This Family Found a Talking Creature Living in Their Walls | 1,913 | |
|
| 408. | What Is Dark Matter? | 1,909 | |
|
| 409. | Everyone in This Town Has To Wear a Gas Mask | 1,883 | |
|
| 410. | The Greatest Scientist in History Was Hiding a Deadly Secret | 1,881 | |
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| 411. | 5 Most Shocking Controversies in The Food Industry | 1,880 | |
|
| 412. | Why We Still Don't Understand How the Ecosystem Works | 1,879 | |
|
| 413. | Why Did These American Settlers Eat Each Other? | 1,873 | |
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| 414. | The Twisted Story of the Real Guy Fawkes | 1,848 | |
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| 415. | 9 Foods With Surprising Origins | 1,842 | |
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| 416. | Why Did Hitler's Right-Hand Man Make a Secret Trip to Britain? | 1,839 | |
|
| 417. | Why Did Drinking From this Bottle Make People Blind? | 1,839 | |
|
| 418. | What Really Happened on the Set of the Weirdest Movie Ever? | 1,839 | |
|
| 419. | Why Do We Cry? | 1,836 | |
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| 420. | Why the Largest Living Thing Is Not What You Think | 1,832 | |
|
| 421. | How a Man Survived The Strangest Accident in History | 1,829 | |
|
| 422. | The 5 Most Odd Experiments in History That Will Give Your Body Chills | 1,820 | |
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| 423. | Could We Create Real Super Soldiers? | 1,805 | |
|
| 424. | The Shocking History of Assassins | 1,804 | |
|
| 425. | Why Did the Best Burglar in History Live Here? | 1,800 | |
|
| 426. | Most People Can't Tell What's Wrong With This Image | 1,800 | |
|
| 427. | What Happened To The Only Black Man Who Joined The KKK? | 1,796 | |
|
| 428. | How Police Are Predicting When Crimes Will Happen | 1,793 | |
|
| 429. | Meet the Deadliest Creature in the Ocean | 1,789 | |
|
| 430. | How Is Your Sex Determined? | 1,776 | |
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| 431. | Welcome To The Smallest Town in America... Population: 1 | 1,772 | |
|
| 432. | 9 Most Expensive Things in The World | 1,754 | |
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| 433. | This Is What Really Happened Inside Insane Asylums | 1,752 | |
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| 434. | Can We Edit Earth? | 1,751 | |
|
| 435. | 7 Amazing Structures Built By Animals | 1,747 | |
|
| 436. | They Never Stood a Chance Against This INFAMOUS Pirate... | 1,746 | |
|
| 437. | Why Was This Feral Child the Most Wanted Person in the World? | 1,738 | |
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| 438. | How Self-Isolation Has Changed the World And Will Do Again | 1,721 | |
|
| 439. | 10 Most Bizarre Traditions From Around The World | 1,709 | |
|
| 440. | The Real Shark Attack That Inspired Jaws | 1,705 | |
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| 441. | Everybody Loves Potatoes, But You Should Know The Truth | 1,700 | |
|
| 442. | Billionaires Are Secretly Directing Asteroids To Earth and We Don’t Know Why | 1,700 | |
|
| 443. | What Secrets Are These Mysterious Cave Paintings Hiding? | 1,681 | |
|
| 444. | How To Become President of the United States | 1,680 | Guide |
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| 445. | Why Do These People Live in the Middle of a Lake? | 1,674 | |
|
| 446. | This Remarkable New Technology Will Change Your Life (Really) | 1,671 | |
|
| 447. | 7 Things That Are Much Older Than You Think | 1,667 | |
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| 448. | Behind the Scenes of Your Memory is Remarkable | 1,657 | |
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| 449. | The Super Weapon That Could Destroy Planet Earth | 1,652 | |
|
| 450. | What Is a "War Crime"? | 1,644 | |
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| 451. | Why Did an Entire Town Turn Into Vampires? | 1,644 | |
|
| 452. | Why You Could Go To Prison If Your Sausage Doesn't Work | 1,641 | |
|
| 453. | The 9 Most Extreme Places on Earth Right Now (Never Visit Unprepared) | 1,636 | |
|
| 454. | This Is The Most Dangerous Job in The World... | 1,634 | |
|
| 455. | Meet the Victorian Demon Nobody Could Catch | 1,629 | |
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| 456. | The Apocalypse Earth Miraculously Escaped | 1,626 | |
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| 457. | 7 Amazing Animal Abilities That You Wish You Had | 1,606 | |
|
| 458. | Meet the Bear Who Fought the Nazis and Won | 1,600 | |
|
| 459. | Sharks Attacked This US Warship and What Happened Next Shocked the World | 1,600 | |
|
| 460. | Why Do Chinese Buildings Have Giant Holes? RIF 97 | 1,593 | |
|
| 461. | Why Is It So Hard to Remember Dreams? | 1,593 | |
|
| 462. | How Important Is The Moon? | 1,589 | |
|
| 463. | Why Do We Lie? | 1,586 | |
|
| 464. | Herring Use FARTS to Talk to Each Other | 1,583 | |
|
| 465. | The Most Evil Serial Killers The FBI Can't Catch | 1,583 | |
|
| 466. | 8 Mysterious Unsolved Crimes | 1,582 | |
|
| 467. | Almost All Random Numbers Are Actually Fake | 1,577 | |
|
| 468. | Meet Paris' Secret Underground Society | 1,576 | |
|
| 469. | On This Day Billions of Animals Suddenly Died and Nobody Knows Why | 1,572 | |
|
| 470. | Meet the First Man to Fly Like a Bird | 1,570 | |
|
| 471. | The Most Private Country on Earth is The Last Place You Expect | 1,569 | |
|
| 472. | Why This Is The Most Disturbing Building In History | 1,568 | |
|
| 473. | There Are Secret Oil Wells Hidden All Over Los Angeles... | 1,559 | |
|
| 474. | The Simple Machine That Can Bring the Dead Back to Life | 1,553 | |
|
| 475. | 5 Fastest Methods of Space Travel | 1,531 | |
|
| 476. | The Truth Behind The Most Impossible Survival Story Ever Told | 1,530 | |
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| 477. | Fear is Actually Good For You. This is Why. | 1,528 | |
|
| 478. | Eating This Fish Gives You Nightmares | 1,525 | |
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| 479. | Meet The World's Most Dangerous Cult Leader | 1,524 | |
|
| 480. | The Simple Truth About Why You Believe in Superstitions | 1,521 | |
|
| 481. | Meet the Man Who Found a Real Mermaid Skeleton | 1,519 | |
|
| 482. | This Is the Biggest Myth In Science | 1,514 | |
|
| 483. | How to Sell Your Wife | 1,509 | |
|
| 484. | Are Crooked Teeth Attractive? RIF 56 | 1,509 | |
|
| 485. | Why Did This Billionaire Go Insane? | 1,508 | |
|
| 486. | What REALLY Happens When a Caterpillar Turns Into a Butterfly... | 1,508 | |
|
| 487. | Nobody Who Entered This Ship Survived | 1,507 | |
|
| 488. | What Happened to the Woman Who Walked 675 Miles? | 1,503 | |
|
| 489. | What Would Happen If Zombie Fungus Infected Humans? | 1,501 | |
|
| 490. | Why Humans Could Be Living Underground in 10 Years | 1,496 | |
|
| 491. | This Is the Worst Job in History | 1,487 | |
|
| 492. | How Much Does War Cost? | 1,475 | |
|
| 493. | This Is Why You Always Leave the Store With Too Much Food | 1,473 | |
|
| 494. | Why Do We Enjoy Watching Horror? | 1,463 | |
|
| 495. | How Would We Talk to Aliens? | 1,458 | |
|
| 496. | Almost Nobody Alive Can Finish The Race That Never Ends | 1,456 | |
|
| 497. | Meet The Most Misunderstood Serial Killer In History | 1,450 | |
|
| 498. | The Trillion Dollar Scam You've Never Heard Of | 1,440 | |
|
| 499. | How Anyone Can Easily Hack Your Smart Home Right Now | 1,437 | |
|
| 500. | Why Do We Become Addicted? | 1,431 | |
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