The Maestro tells his students about the famous "Biosphere" project in Arizona, the largest enclosed ecological system in the world.

In the first episode of this new cartoon series, Once Upon a Time... Planet Earth, deforestation issues are addressed from outer space... Just grow a few trees in a spaceship and plant them on land later!

Vespuccia or America? In the last episode of this fun cartoon, we find out how the name of the new continent now known as "America" came about.

Amerigo and his crew continue exploring the New World. Their water is almost gone. Fortunately, the river they're sailing on turns out to be the Amazon, so they won't die of thirst after all.

Amerigo Vespucci sets foot for the first time on the American continent. He collects all manner of plants and animals, only to drop them into the Amazon River.

The explorers are exploring a new territory, full of lush vegetation, exotic wildlife, and, to the joy of a few explorers, gold! Perhaps they could use a lesson on the dangers of greed...

Amerigo Vespucci sails for the New World to explore new territories discovered by Columbus, draw accurate maps, and find the true route to the Indies. As his ship approaches "Little Venice," or Venezuela, the crew comes into contact with some local natives.

He may not know it yet, but Amerigo Vespucci's life is about to change. Though he works as a successful banker, Amerigo feels restless and aspires to greater things. Luckily, Lorenzo de' Medici has offered him the opportunity of a lifetime: a trip to Spain to help Christopher Columbus prepare for an expedition to the Indies.

It's back to the past, with the Once Upon a Time series. How did America get its name? Take a trip back to Renaissance Italy in this first episode of The Explorers to find out.

Daniel Benchimol continues his tour of the Normandy coast with stops in Tourgéville, Houlgate, and Dives-sur-Mer. Along the way, he shows us some interesting houses built on top of German bunkers from World War II.

In the French town of Lantages, a group of history buffs and other volunteers reenact a series of World War II battles from the years 1940 and 1944. Their equipment and clothing are authentic to the period, which helps to preserve that memory of that difficult time.

The cathedral of Chartres is one of the most famous in Europe and is a prime example of Gothic architecture. Daniel Benchimol gives us an exclusive tour of this magnificent cultural landmark.

According to our trusty tour guide, Daniel Benchimol, Paris's Alexander III Bridge is one of the most beautiful in the city. You might find it hard to disagree after watching this video!

Why is this dead-end street named after a big bottle? The local historian will reveal all.

In the last segment of this animated series on ancient Greece, we learn about the later years of the empire, filled with endless wars and the ostracism of some of its most famous citizens.