Karst formations include dolines and dripstones.
Find present-day countries related to notable historical personalities.
The equipment of ancient Chinese soldiers was rudimentary.
This light tank was used by the Royal Hungarian Army in World War II.
Follow John the Valiant on his quest described in Sándor Petőfi´s poem.
Napoleon Bonaparte´s Grande Armée was considered invincible.
Senators, being members of the highest social class of ancient Rome, wore togas with purple edges.
The Athenian democracy was built on the community of citizens with full rights.
Wolfgang von Kempelen´s best known invention.
This animation demonstrates how radios work.
The recorder is a woodwind musical instrument, a type of fipple flute.
Find notable locations of the Carpathian Basin on a map.
A crystalline substance, an extremely important material in the electronics industry (semiconductors, integrated circuits).
One of the isomers of pentane, used as a solvent.
One of the isomers of butene.
Not all nets consisting of 6 congruent squares are foldable into cubes.
A triangular earth fortification, used by the leader of one of the old Hungarian tribes at the time of the Hungarian conquest.
Raw iron is produced from iron ore in iron smelters.
The Pauline monastery was built for Hungarian hermit monks in 1225.
The reproductive system is a series of organs working together for the purpose of reproduction.