A prehistoric amphibian and an early representative of the Tetrapods, which became extinct 360 million years ago.
One of the main units of Matthias Corvinus´ Black Army was the cavalry.
Remnants of Ottoman architecture in Hungary include the Gazi Kasim Pasha Mosque in Pécs and the Minaret of Eger.
Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.
Alkanes are saturated hydrocarbons which can be organised into a homologous series.
This animation demonstrates the structure of water towers.
Egyptian Pharaohs were respected as gods, they were lords of life and death.
Giant sequoias are the world's largest living organisms by mass.
Large, extinct species of cats named after the shape of their large canine teeth.
One of the most important parts of a medieval castle was the Knights´ hall.
The California Gold Rush started in 1848, near San Francisco.
An acyl-carrier coenzyme taking part in both anabolic and catabolic processes.
This animation demonstrates birds' bones and eggs through the example of the common blackbird.
Medieval knights were vassals of feudal lords and fought on horseback in battles.
Colour a map with the fewest number of colours possible, so that no two adjacent regions have the same colour.
A colourless, odourless, non-reactive gas, it constitutes 78.1% of Earth´s atmosphere.
A transitional form between fish and tetrapods, or four-limbed vertebrates.
One of the crystalline allotropes of elemental carbon.
Several European countries joined the conquest of the New World, making America a colourful continent.
The Fighting Falcon is the most successful aircraft in the category of multi-purpose fighters.