An architect explores da Vinci's quest to fly

Da Vinci’s ingenious self-supporting bridge

Without using glue or nails, the brilliant polymath Leonardo Da Vinci was able to construct a sturdy bridge of wood logs. This video unpacks the genius civil engineering behind this concept and offers a visual demonstration of how it worked. See how Da Vinci accomplished this feat without using permanent parts, and how his bridge got even stronger as weight and force was added.

The pair began their aviation research by studying the 'mechanics' of birds

Taking inspiration from gliding pioneer Otto Lilienthal—whose gliders resembled the wings of birds—Wilbur took to observing birds to understand how they do it, in order to solve the problem of flight. This opening episode on the brothers explores their lives and accomplishments.

Self-driving formula cars race in the Abu Dhabi Autonomous Racing League

The league and high-speed versions of traditional cars help to showcase the capabilities of driverless vehicles and the reliability of their AI systems. Leonardo da Vinci first imagined the idea for such machines in the 16th century.

People learned to fly in VR, and their brains then accepted wings as body parts

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts. The brain research has potential implications for how VR training may help people adapt to prostheses. (Free with email.)

Jean-Jacques Lequeu was an amateur architect who dabbled with the surreal

Although he never found a career in architecture, Lequeu sketched hundreds of images in his free time. His innovative style wasn't discovered until after his death, but the dreamlike drawings have since been appreciated for their visionary quality.

Exploring the link between history, art, and anatomy

Throughout centuries, art has played a vital role in sharing—and furthering—scientific understanding. This largely began in 1543 when physician Andreas Vesalius worked with an artist and engraver to transform learnings from his dissections into...

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts.

See nine airplane models that transformed aviation

This visual guide jumps over the dawn of modern air travel and begins with the open-cockpit biplane flown by the first scheduled airline, the St. Petersburg-Tampa Airboat Line. (Some users may experience a paywall.)

Why can't we see Mona Lisa's eyebrows?

The world's most famous painting is missing something. And it took centuries for experts to figure out what. In this episode, August Moon investigates what happened to the Mona Lisa's eyebrows—analyzing infrared scans, tracking 500 years of restoration, and examining a forgotten copy from Leonardo's studio. But he uncovers something bigger: what we lost after the 1911 theft that has nothing to do with the painting leaving the Louvre.

Organic architecture marries man-made buildings with the natural context around them

Frank Lloyd Wright’s nebulous concept of organic architecture is one that even he struggled to define. Its basic premise is to make a building look as though it grew from the land it stands on by emphasizing natural materials and incorporating the surrounding environment into the design.

Raphael's 'School of Athens' visually contrasts the views of Plato and Aristotle

As part of a commission from Pope Julius II to decorate his private library (and while Michelangelo was painting the Sistine Chapel), Raphael created four frescoes representing different branches of knowledge: theology, philosophy, law, and poetry. "The School of Athens" depicted philosophy, staging classic thinkers Plato and Aristotle alongside others from intellectual history.

What it’s like to be an apprentice at Frank Lloyd Wright’s Taliesin

Architect James Walter Schildroth became an apprentice in Frank Lloyd Wright’s Taliesin Fellowship program in 1959, just months after Wright's passing. The invaluable experience taught him how to build as he worked and confronted him with the struggles of living in the space.

The 'maiden of maiden voyages' who taught the world how to fly

In 1939, Clara Adams set the world record for the fastest person to circle the globe via commercial airliner, though she was a passenger and not a pilot. This article explores the impact of Adams' journey on the commercial flight industry. During...

The first flight on Mars carried a piece of the Wright plane with it

In April 2021, the solar-powered helicopter Ingenuity—attached to NASA’s Perseverance Mars rover—flew in what became the first controlled flight on a planet other than Earth. Carried with it was a piece of fabric from the famous 1903 Wright Flyer, a symbol of Ingenuity’s continuation of the Wright tradition.

The Mona Lisa's celebrity status and repeated restorations have obscured what made the painting so revolutionary for its time

A nightmarish vision for airplane seating

Airplane seat designer Alejandro Núñez Vicente reckons his double-decker airplane seat could revolutionize budget air travel. CNN went to the 2022 Aircraft Interiors Expo in Hamburg to try it out.

A quote by Lauren Bacall

"Imagination is the highest kite one can fly."

Watch Mike Wallace's fascinating interview with Salvador Dalí

In 1958, Salvador Dalí spoke in a TV interview with legendary journalist Mike Wallace about genius, the subconscious, weakness, old age, luxury, religion, and dreams, among a range of other topics. During this candid conversation, Dalí challenged American audiences to consider death and mortality. Watch the discussion here.

NASA's big dream that never came to life

Conceived in the early 1960s, the Sea Dragon was an audacious ocean-launched rocket design that would have dwarfed the Saturn V in both scale and payload—but its extreme engineering challenges kept it firmly on the drawing board.

Six stories of survivors who fell from the sky

Rarely are there survivors when airplanes explode in air or crash due to the extreme speeds and elevation of the craft. Sometimes, though, people survive. Here are six stories of people who defied the odds and lived after falling from a plane.

A 15th-century university student documented a surprisingly detailed fitness plan

Modern fitness stems from the revolution in the knowledge we have of the human body, its cardiovascular systems, how muscles work, and more. Nonetheless, people through the centuries have had fitness regimes—including one university student whose fitness plan was preserved in an obscure document found between a manuscript.

Scientists used to speculate about life on the moon

In the 17th century, Galileo's observations suggested the moon could be inhabited, leading to fictional speculations about lunar life. In the 19th century, stories were published claiming the discovery of various creatures, including human bats. The Apollo missions in the 20th century explored the possibility of life there, but further exploration showed this idea to be less likely than before.

Explore a NASA timeline of the entire Voyager mission

This infographic leads users through the entire Voyager mission timeline, starting at its conception and moving through launch, to each destination, and finally, the Voyagers' crossing into interstellar space.

A virtual visit to La Sagrada Família

La Sagrada Familia is Catalan architect Antoni Gaudí’s magnum opus. The ornate Catholic church has been under construction since 1882, and the main structure isn’t expected to be completed until 2026. Decorative detailing won’t be finished until 2034. Even though it’s a work-in-progress, it’s open for tours, including from a computer screen. Click the link for a 360 view of the iconic church from 10 different vantage points.

A history of Bauhaus, the influential 20th-century design movement

The design school was short-lived but immensely impactful, turning design in architecture, typography, and a number of other fields away from superfluous ornamentation and toward practical, straightforward expression. This history of the movement from the Metropolitan Museum of Art outlines its major figures, key events, and the ways its influence persists.

Legendary architect Frank Lloyd Wright designed the SC Johnson headquarters in Wisconsin, aiming to make a cathedral-like workplace

Flip through centuries-old artifacts in this 3D library

Archaeology is hands-on work, giving researchers the ability to analyze artifacts from as many sides as possible to find marks left by those that came before us. While looking at pictures of artifacts gives you some insight, you're limited to...

See technicians use rappelling gear to make wind turbine repairs from 35+ stories up

Although drones are used to conduct initial reviews from the ground, mechanical engineers trained in turbine maintenance face extreme risks during close inspections more than 150 meters off the ground.

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

See these 16 pieces of art evoking phobias of snakes, flying, spiders, and more. 

Learn more about the history of fireworks, which dates back to an accidental invention during an alchemist's quest for information about immortality.

Watch this video that uses Lego bricks to explain how venture capital works.

Explore our favorite visualization of the immense scale of space, from an astronaut to the size of the observable universe

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

Salvador Dalí believed he was his own dead brother, who had died nine months before he was born

Exploring the Larry Bird punch that almost changed March Madness

Double world record holder Hunter Ewen helped conquer his fear of balloons, called globophobia, by training to win Guinness World Record titles for balloon inflation.

American short story writer Flannery O'Connor raised 40 peacocks, which became potent symbols for her fiction's elegant violence

Trace how the Bill of Rights, inspired by centuries of political theory, took shape between 1774 and 1789.

English mathematician Ada Lovelace wrote the first computer algorithm a century before computers existed and hypothesized that computing devices would one day be able to compose music—foreseeing the generative AI systems of today.

Scientists have struggled to pin down Ebola's natural reservoir species for decades, but the available evidence suggests that it's very likely fruit and insect-eating bats found in Africa.

Abraham Lincoln was almost assassinated weeks before his inauguration as he traveled from Illinois to DC through Baltimore in 1861; it took two independent claims for Lincoln to be convinced the threat was real

In 2018, 26-year-old missionary John Allen Chau was killed by tribesmen after attempting to reach and evangelize on India's isolated North Sentinel Island

Explore a list of the 100 best novels of all time, compiled by some of the world's best living writers, including Salman Rushdie, Stephen King, and Jennifer Egan.

'Saturday Night Fever,' the 1977 film that introduced disco to the mainstream, was based on a fabricated magazine story.

American dance legend Martha Graham, sometimes called 'the Picasso of dance,' refused to perform at the 1936 Olympics in Berlin and conceived the piece 'Chronicle' in response to the experience.

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public.

As of 2025, the most cited papers in science include a review of graphene, methods to improve image recognition, streamlining electron density calculations, and optimizing protein studies.

Chaos theory—informally known as the butterfly effect—is the reason why weather forecasts are presented with probabilities rather than certainties.

See photos of Meteora, a mountainous site in central Greece, home to 14th-century monasteries perched atop soaring outcroppings.