We move to the French side of Mont Blanc, which has a much milder slope than the Italian side. Mont Blanc stands out as having had an important role in the development of mountain-climbing as a competitive sport.

Marika shows us a famous bookshop in Venice. It's in a critical position with respect to the water level, so special precautions are taken to protect the books when there are high tides. Fascinating!

When you are watching a video on the Yabla player, there are some options (aside from the playback buttons), right at your fingertips. Marika explains the first three here in the first part of the tutorial: Help, Transcript, and Favorites, which may also be called "Bookmark."

We learn about the curious names of some of Mont Blanc's magnificent peaks and glaciers. Normally there are 42 glaciers but that number can change!

Marika takes us to Venice where we have a look around through her "eyes." We start out near the Doge's Palace.

Mont Blanc has always been considered the highest peak in Europe. But is it? Alberto Angela discusses this and another question: What's the real height of Mont Blanc and why do they have to measure it every two years?

We are back visiting nature's own wonders, this time up in the mountains, on Mont Blanc, to be precise, at an altitude of over 4000 meters.

The Castle of Roccascalegna stands on a high, rocky bluff dominating the valley of Rio Secco in the province of Chieti. Breathtaking drone footage allows us a bird's eye view of this fascinating construction, begun by the Lombards as a watchtower.

The Great Cave of the Wind in Frasassi is a natural wonder, but it also bears witness to the passing of time. Speologists are still exploring it and discovering new wonders.

We spend some more time in the spectacular Frasassi Caves, and this time we see the famous "Room of the Candles" filled with stalagmites that look like candles ready to be lit. Alberto Angela also discusses the colors in this place, as well as the "sounds of silence."

Alberto Angela tells us how these caves and their internal structures were created. The key is something very simple. Water.

The magical Frasassi caves look like something out of a fairy tale, but there's a more scientific explanation.

Marika explains what partitive articles are all about and gives us some helpful examples.

Alberto Angela describes the discovery of the Ancona Abyss, named after the city the speleologists were from. It’s part of the Great Wind Cave.

Articoli partitivi, or partitive articles look like articoli articolati because they are formed with a preposition plus an article. But their function is different. Most of the time they are a way to say “some.” This lesson is about how to form them, and in future lessons, we will learn how to use them.