From the waltz to voguing, dance crazes have connected people throughout history. But when a dance catches on, who gets the credit — and compensation?

The Instagram face. A shapely posterior. Cosmetic surgery can make the latest beauty trends a reality. Explore its origins and effects, inside and out.

Elaborate music videos, adoring fans, killer choreography. Learn about the global music phenomenon from South Korea that goes beyond "Gangnam Style."

Dirt roads. Pickup trucks. Hip-hop? As the borders around country music shift, who decides what defines the popular genre, and who gets to be a star?

Do zodiac signs prescribe your fate? Or do horoscopes' accuracy lie in the placebo effect? Take a look at the science, history and lure of astrology.

Apologizing is tough, and in this era of public mea culpas, forgiveness isn't guaranteed. What makes for a good apology, and why does it hold such power?

How do monarchies survive when they no longer wield power? By presenting a royal fairy tale that may not reflect the reality of the past — or present.

A flag can unite, divide and terrorize. Explore how a piece of cloth transformed into a powerful symbol of both love and hate, freedom and oppression.

They've been used to command respect, punish criminals and mark achievements. Tattooists speak about the origins of tattoo traditions and rituals.

As the planet warms, hurricanes could become even more dangerous and destructive.

Cryptocurrency has made people billionaires, but is digital cash the next revolution? Learn about this anonymous currency and how it's coveted.

Is fake violence a sport? Fans, shoutcasters, and eSports icons break down today's video games and the explosive popularity of competitive gaming.

Cricket experts look at how the confusing sport became so popular and discuss its evolution in becoming more accessible entertaining and profitable.

Political correctness can sometimes feel like a tug-of-war between inclusivity and free speech. Experts discuss the concepts behind the fraught term.

It began with bloomers. Then came spandex. Now we sport leggings and other activewear everywhere. How did comfy, casual clothing go mainstream?

Do we overuse exclamation points!? Linguists and copy editors look at how the punctuation has adapted across history, literature and internet-speak.

In pop culture, pirates are often depicted as booty-looting rogues, but their history is far more complicated. See how they became enemies of humanity.

Beauty may be in the eye of the beholder, but what exactly makes things such as art and architecture aesthetically pleasing, and why do we like looking?

What do biology, human history and the promiscuity of bonobos reveal about monogamy? Experts and everyday couples weigh in on shifting cultural norms.

Atkins. Paleo. Keto. Do any work in the long term? Experts look at marketing, food environments and genes to explain why diets are often unsuccessful.

Does the stock market accurately reflect the status of the economy? Finance specialists discuss market history, valuations and CEO incentives.

Don’t panic, but our skin plays host to trillions of bacteria, fungi, mites and other microscopic guests. Go beyond skin-deep with our largest organ.

Fairy tales have survived thousands of years for a reason. Explore their far-flung history and how the stories speak to fundamental human concerns.

Hillary Clinton and Anne-Marie Slaughter discuss the cultural norms at the center of the worldwide gender pay gap, including the "motherhood penalty."

Cory Booker and others discuss how slavery, housing discrimination and centuries of inequality have compounded to create a racial wealth gap.