The dangers of aluminium production

The use of bauxite, which is first processed into alumina and then into aluminium, can be harmful.


Waterfalls form mainly in the upper course of rivers, usually in rocky areas, due to vertical erosion.

The night sky

In this video you can admire the beauties of the night sky.

Lar gibbon

A monogamous species of lesser apes living on the trees.

The mallard

One of the most common types of Anatidae, the ancestor of the domestic duck.


Most species of frogs live near water, however some species have also adapted to extreme circumstances.


The most eye-catching characteristic of snails is their shell that is in fact an exoskeleton made mostly of calcium carbonate.


Lightning strikes somewhere on Earth every second. This extraordinary phenomenon is a spectacular sight, but at the same time it can be dangerous.

Open-air ethnographic museum

An open-air museum is like living history itself.

Vatican City

The smallest state in the world, with an area of barely 0.44 km2. The Papal State has a population of just over 800 people, most of whom are ecclesiastical...


This species is an excellent example for symbiosis. Living together with sea anemones they keep predators away.

Raven training

Ravens are considered the most intelligent birds, displaying high learning ability and use of logic in solving problems.

Southern three-banded armadillo

The southern three-banded armadillo is one of the very few species of armadillos capable of rolling into a complete ball to defend themselves.

Asian elephant

This species of the family Elephantidae is the second strongest and biggest terrestrial mammal living on Earth today.

Baroque architecture

Baroque is a style in art developed in Europe from the early 17th to mid-18th century. Among its characteristics are complex patterns, richly ornamented...


One of the main ingredients of the highly popular refreshment: the lemonade. As it is high in vitamin C, it helps us prevent catching colds.


A delicious fruit cultivated worldwide that is mostly eaten raw, but it also has various uses.


The potato originates from South America. It is the most important food crop beside cereals.

The power of acetone peroxide

Acetone peroxide is a dangerous crystalline organic compound with a consistency like icing sugar.


This species of antelope, native to southern Asia, is more often seen in zoos than in the wild.

Added to your cart.