In the last segment of this Il était une fois... episode on technology, we learn more about what vertical farms can do to help the planet thrive. The first commercial vertical farm recently opened in Singapore.

Our eco-friendly home show representative explains the benefits of cellulose wadding versus fiberglass, two insulation materials commonly used in houses.

The square around Paris's city hall, the Hôtel de Ville, is much more than a purely bureaucratic area. It features one of the city's most renowned department stores, the BHV, and even turns into an ice-skating rink in the winter.

The students present the Maestro with various solutions for eliminating pollution on our planet, including vertical farms and biotechnology.

For New Year's Eve, come join the mountain people of the Savoie region at the O’Communailles restaurant where good local food is being served with a twist in a convivial atmosphere. Then watch the happy locals dance the night away.

In keeping with northern European traditions, Saint Nicholas visits local French schools to bring good cheer and some treats! Luckily, his partner Père Fouettard, who usually hands out coal to naughty children, is away looking after his sick donkey today.

Twenty-one thousand letters to Santa Claus were sent this year in Marseille. As if he didn't have enough on his plate, Saint Nick will send a handwritten response to each one, as long as their senders are on his "nice" list (and indicated their return address)!

Despite the cold weather, people are flocking to the opening of the Colmar Christmas market in Alsace. In this video, tourists talk shopping and vendors explain why they like to work at the Christmas market.

It takes a lot to decorate the 31-meter high Christmas tree on Strasbourg's Place Kléber: ten technicians, two bucket lifts, 75 thousand lights. Luckily, the operation is being managed by Antoinette Pfimlin, who has 20 years of experience decorating giant trees in a hard hat.

What is the French traditional holiday fare? You'd be surprised... While the classic turkey with chestnut stuffing is still on the menu, some people are getting off the beaten track, pairing classic dishes with ethnic food. Foie gras samosas, anyone? Or how about imitation caviar truffles?

Some Alsace residents take Christmas decorating very seriously. From two men who go all out with phantasmagoric light displays to a woman who opts for a subtler, 1940s décor, you'll find some different takes on what it means to be in the "Christmas spirit" in this video.

Le Marais (literally "The Marsh") is one of Paris's most historic districts, with many medieval buildings and streets still intact. In this video, Daniel Benchimol reveals some of the district's architectural secrets, such as an impeccable fourteenth-century house and the remnants of a late twelfth-century wall.

A group of smart young people found revolutionary ways to solve our planet's woes. Electronic books, Internet mail and much more...

Enjoy Duel's spooky new single "Vertigo," set against a particularly impassioned, vengeful scene from an old film. It will definitely give you the chills!

A Primacalc representative introduces a revolutionary eco-friendly device that softens hard water. The device can be installed by a savvy handyman or a plumber.