Since 2018, around 103,000 millionaires moved out of California — and 133,000 millionaires moved in to Florida

Gaeilge is trending culturally. So why is it, according to census data, also dying?

As the global economy moves beyond oil, the strategic importance of the world’s most critical hydrocarbon chokepoint is likely to decline rapidly.

The ideology, economics, and psychology behind the modern world’s draining of color from homes, cars, and everyday objects.

This 1524 map of the Aztec capital was a window into an exotic otherworld — and largely a fiction.

The ozone hole was going to destroy life as we know it, but an unprecedented global effort fixed the problem.

First rising in the 15th century, these forts sought to counter a deadly innovation in military technology.

A century ago, an American colony named after Trump’s favorite president was thriving on the Isle of Pines. Then came hurricanes and geopolitical reality.

One of the toughest vocational exams in the world requires candidates to memorize 25,000 streets in an area five times the size of Manhattan.

Scientists found a massive underwater wall off the coast of France that might help explain the origin of the legend of Ys.

In post-apocalyptic fiction, imagined futures turn today’s political and cultural tensions into geography.

The plan — conquer China and push west to attack the Ottomans — was peak imperial hubris, as the Spanish themselves eventually realized.

Nearly 30 would be “nones” — an amorphous group that spans from zealous atheists to the vaguely spiritual.

The African Union argues that the Mercator projection distorts the continent, both in size and global attention.

The latest “Superman” film sets Metropolis in the First State.

Science helps us imagine the vastness of space and time — and our small but meaningful place within it.

“Climate analog mapping” finds the place that is currently as warm as your city might be in 60 years.

The JFK Memorial at Runnymede provides a link between America’s and Britain’s founding documents.

After more than a million years of separation, two branches of humanity reunited around 300,000 years ago, suggests new research.

As Beijing encroaches on the territory of the Himalayan kingdom, its ultimate aim is leverage over India.

A comparison of wealth gaps in ancient empires reveals stark differences and lasting consequences.

Can you travel by rail from Portugal all the way to Singapore? In theory, yes. In practice? Not so much.

Common knowledge says the maximum size of a PDF is as big as 40% of Germany — but that’s a gross underestimate.

A study on the “moral circles” of liberals and conservatives gets drafted into the culture wars — with mixed results.

“Gyroscope-on-a-chip” technology could soon enable us to navigate over long distances without GPS.

“It’s only natural for us to get America back,” quipped Kim Kielsen, former prime minister of Greenland, in 2019.

The Roman Empire at one point emitted roughly 3,600 tons of lead dust per year, causing “widespread cognitive decline.”

Dubbed “Valeriana” by researchers, the city of 50,000 peaked around 800 AD before being swallowed by the jungle.

In 1900, the UK clearly was the richest country in Europe. That’s no longer the case.

In 8,000-mile journey, a male humpback ditches Colombia for Tanzania — however, scientists don’t know why he made the trip.