The landmark opera 'Einstein on the Beach' was around 5 hours long with no intermissions, and the audience was encouraged to come and go as they pleased.

'Einstein on the Beach,' often considered a groundbreaking experimental work, is structured like a classical opera.

Watch Philip Glass perform several pieces from 'Einstein on the Beach.'

Watch a 2014 performance of Philip Glass' and Robert Wilson's opera 'Einstein on the Beach.'

Philip Glass drove a taxi in his 30s and 40s, something he continued even after his critical breakthrough, 'Einstein on the Beach.'

Philip Glass was once an assistant to Ravi Shankar, the Indian music legend who introduced the Beatles to Eastern music.

Watch an interview with Philip Glass about his career and theory of creativity, which he believes needs to be consistently deconstructed and reinvented.

The ideas of Einstein and Freud combined in 'The Persistence of Memory'

The Persistence of Memory was painted on a canvas roughly the size of a sheet of paper, depicting a desolate landscape with melting clocks, ants, and a distorted figure. The piece incorporates Freud and Einstein's ideas, resulting in a haunting composition symbolizing time's fluidity and Dalí's personal anxieties.

Exploring Oskar Schlemmer's 'Triadic Ballet,' a Bauhaus-inspired performance piece

The "symphonic dance of threeness" brought together Bauhaus' varied artistic interests and offered a fable in which collectivism wins. This history and timeline of the work details its origins as well as its near-destruction at the hands of the Nazis, who considered it profane.

Making an opera is expensive and requires many people to reach the stage

Bringing an opera to the stage is a detailed, demanding, and costly process. Following the lead ​​of Phillip Glass’s “Akhnaten” before its performance at the Metropolitan Opera House in Manhattan, this Vox video displays the rehearsals, vocal lessons, intricate costumes, and even juggling involved in putting on a show.

Philip Glass' collaboration with electronic producer Aphex Twin found the two music icons bonding over their desire to push the limits of modern music.

Disillusioned mid-century playwrights, such as Samuel Beckett and Eugène Ionesco, brought existentialist ideas to the stage through the Theater of the Absurd.

Philip Glass composed music for the 1998 film 'The Truman Show,' and even briefly appeared in it.

Albert Einstein's theory of gravity arose from what he described as 'the happiest thought of his life': realizing that a person who fell off the roof of their house would not feel their own weight as they fell.

Albert Einstein taught courses in Davos

This silent video from the 1920s shows footage of Einstein at Davos. The famous scientist spent time there, delivering public lectures on his theory of relativity as part of the town’s university courses.

Experimenting with space-time

Einstein's theory of general relativity—that mass literally bends space and time—can be difficult for the human brain to imagine. This interactive resource lets you create celestial objects, imagine their effect on space-time, and see how they interact with each other (best viewed on desktop).

'Waiting for Godot' was inspired by a Friedrich painting

Samuel Beckett was an admirer of art and, while touring German art galleries in 1937, saw Caspar David Friedrich’s Two Men Contemplating the Moon. A directorial notebook for the original production of “Waiting for Godot” notes that the end of the play’s first act was inspired by the 19th-century work.

'Barbenheimer' resulted in a historic box-office event

The cultural sensation that erupted when Christopher Nolan's "Oppenheimer" and Greta Gerwig's "Barbie" shared an opening night was something that no one could have predicted. "Barbenheimer," as the pairing was called, became a semiserious litmus test for relationships: Who wanted to see which film, and in what order? The viral moment led to box-office gold for both movies, as well as a few Oscars.

Against his wishes, Albert Einstein's brain was removed before his cremation, and the pathologist responsible stored it for decades in mason jars within a beer cooler.

Arnold Schoenberg, a pioneer of modern music, and painter Wassily Kandinsky, a pioneer of abstract art, were close friends who inspired one another's work.

Einstein and the fourth dimension

How Einstein's greatest theoretical achievement contains a simple but mind-bending proposition—the dimension of time is physically connected to the three observable spatial dimensions.

Zurich's Cabaret Voltaire was the epicenter of early performance art

In early 20th-century Zurich, one nightclub was the epicenter of avant-garde art and performance: Cabaret Voltaire. Night after night, crowds of artists, writers, philosophers, and others would gather to watch—or participate in—wild, unrehearsed performances that could include anything from sound poems to traditional folk dance. The atmosphere at Club Voltaire was the ideal breeding ground for outside art movements, and it is thought to be the birthplace of Dada, a precursor to performance art.

Fed up with difficult audiences, Arnold Schoenberg started a private concert club that prohibited audible reactions.

Listen to Arnold Schoenberg's Holocaust tribute, 'A Survivor from Warsaw.'

‘The Artist Is Present’ was inspired by an earlier performance titled ‘Nightsea Crossing’

In the ‘80s, partners Abramović and Ulay sat across from each other in public without moving or speaking. Ulay was unable to continue after a certain point, but Abramović kept going. “The Artist Is Present” marked Abramović continuing the performance without him.

Samuel Beckett's 'Waiting for Godot' dramatizes existential absurdity

The play, originally staged in 1953, is notorious for its lack of action. For the most part, its two principal characters, Vladimir and Estragon, spend the majority of the play wondering whether a mysterious Godot will ever appear. By the end, Godot has still not arrived, yet Vladimir and Estragon do not move, a choice that reflects the existential notion that humans often hope in vain for meaning that does not exist.

Visualizing Einstein's special relativity

Before Einstein developed his theory of general relativity, he worked out what is known as special relativity—or why time is experienced different for different observers. The breakthrough rests on his theory that light travels at a constant...

Searching for Albert Einstein's stolen brain

Within moments of Einstein's 1955 death, someone reportedly ferreted away the 76-year-old genius's brain. Decades later, a reporter's editor told them to solve the case. This 64-minute podcast episode follows the work of Steven Levy, the reporter who ultimately tracked down Einstein's brain, which had been sliced and stored in slides, goo, and a cardboard box in a scientist's office.

How one silent movie came to define science fiction

Fritz Lang's 1927 epic "Metropolis" set the template for much of the science fiction that followed, establishing themes that would come to define the genre through films like "Star Wars" and novels like "Brave New World." This short documentary from DW digs into the history of the film and its long-lasting impact.

Arnold Schoenberg's atonal music influenced generations of musicians who followed.

Martha Graham refused to perform at the 1936 Berlin Olympics because she believed doing so would be a tacit endorsement of the Nazis

One of Einstein's papers challenged quantum theory but helped confirm entanglement

In 1935, Einstein suggested that quantum mechanics was incomplete due to its strange implications about entangled particles. Their challenge led to decades of experiments that eventually proved distant particles could affect each other instantly.

Andy Warhol’s 'Exploding Plastic Inevitable' shows were multimedia performance art

If you wandered into one of Andy Warhol’s "Exploding Plastic Inevitable" events in the 1960s, you might have encountered a Velvet Underground performance, go-go dancers, strobe lights, guerrilla filmmakers asking very personal questions, and mimes. Warhol was on the cutting edge of many art forms, and performance art was no exception.

Marina Abramović wanted to create a shared consciousness between audience and performer in ‘The Artist Is Present’

The HBO documentary follows the preparation and execution of Abramović’s 2010 MoMA show, taking a deeper look into the emotional experience. Performing was both physically and emotionally taxing for the artist, and visitors were often moved to tears while connecting with her. (This resource contains some artistic nudity.)

‘The Artist Is Present’ is one of the most famous performance pieces in history

The exhibit at the Museum of Modern Art invited visitors to sit in silence in the company of a master performer. Many shed tears or gestured affectionately, claiming to have felt a profound connection with Abramović. (This resource contains some artistic nudity.)

Francis Ford Coppola once directed an episode of 'SNL' featuring experimental composer Philip Glass as musical guest.

Steve Martin and Robin Williams once starred in Samuel Beckett's 'Waiting for Godot,' one of the most well-regarded examples of the existential movement called 'Theater of the Absurd.'

Explore Albert Einstein's Zürich notebook and review his notes on relativity

Within the pages are calculations, sketches and his first attempts at deriving what would be the field equations for gravity. It also documents some dead ends and the difficulties Einstein encountered as he describes part of the mathematics of what would become general relativity, describing it as "too involved."

Discoveries in electromagnetism, which suggested that light traveled at a single speed, became the catalyst for overturning Isaac Newton's view that all speeds are relative and could appear to change based on one's perspective.

A theater group staged 'Waiting for Godot' at San Quentin prison in 1957

The play, about being stuck, resonated with inmates. Critics noted that the incarcerated audience empathized with its hopeless characters much more than those at the show's North American premiere in Miami, who'd walked out in disgust.

Scientists validated Albert Einstein's theory of gravity by measuring the apparent positions of stars via their starlight as it traveled near the sun on its way to Earth during a total solar eclipse.

Arthur Russell's avant-garde music spanned many genres

The classically trained cellist moved to San Francisco in the early 1970s, mingling with the hippie movement and the Beat Generation. After arriving in New York in 1973, he began exploring the nascent punk and disco scenes, infusing them with his classical training; however, his eclectic style might've been part of the reason he never broke through during his lifetime. That variety, though, is what draws so many devoted listeners to his work today.

Sartre wrote an 8-hour screenplay for a Freud biopic

Sartre was hired to write the screenplay for what would eventually become John Huston's 1962 film "Freud: The Secret Passion," about the life of the psychoanalyst. Sartre, however, had trouble sticking to the parameters of Hollywood. An early draft was estimated to be five hours long. Rather than shortening it, as Huston suggested, Sartre extended it to eight hours and was eventually removed from the production.

Camus directed a Picasso-penned play

The show, called "Desire Caught by the Tail," was written by Picasso in 1941 while living in Nazi-occupied Paris. It was first staged in 1944, featuring several French intellectuals, including Albert Camus, who directed, as well as Jean-Paul Sartre and Simone de Beauvoir, who had starring roles.

Check out pictures from the Bauhaus' elaborate costume parties

Bauhaus is known for its innovation, but, at the end of the day, it was still an art school. That means parties were regular occurrences and often featured elaborate costumes—Gropius once dressed as the renowned architect Le Corbusier, while Kandinsky was known for pretending to be an antenna.

View a gallery of Einstein rings

As light from a distant galaxy spreads in all directions, rays that pass around a massive object, such as another galaxy, may be bent around it. If the massive object is positioned between the distant galaxy and our telescopes, we may observe this deflected light forming a ring around it.

Dada artists satirized the horrors of World War I

The movement’s early performances were absurd cabarets featuring experimental poetry, avant-garde music, and maskwork. Much of it was reckoning with the growing deathcounts of World War I, with work that often lampooned Western imperialism and supposed rationality.

Arnold Schoenberg expanded the confines of music by abandoning traditional chords and embracing dissonance.

Friedrich's perspective draws in viewers

Friedrich produced several works, including "Wanderer," portraying figures with their back to the viewer. The effect—called Rückenfigur, or ”figure from the back”—can create complex emotions of longing, immersion, or awe.

How Martha Graham's 'The Rite of Spring' imposed order on chaos

Stravinsky's "The Rite of Spring" is famously chaotic, making it an odd choice for Graham's highly precise style. Her 1984 choreography for it, however, redefined how people saw the ballet's score. Graham's version is still performed today; below is an excerpt from a 2018 performance in Paris.

The story behind Copland and Graham's 'Appalachian Spring'

The ballet, which premiered in 1944, was conceived by the composer and choreographer through the mail, with the two corresponding about how the music might fit the dancing. Later, designer Isamu Noguchi would design a set that whittled the western Pennsylvanian pioneer town down to its core elements.