This animation demonstrates the states and largest cities of the USA.
The Altar of Peace, commissioned during the reign of Augustus, was one of the most important works of ancient Roman art.
The Orthodox church, situated on a picturesque cliff, was named after John the Apostle
The screw pump commonly attributed to Archimedes made irrigation much more effective
The Ironsides were members of the Parliamentarian cavalry formed by Oliver Cromwell during the English Civil War.
Medieval kings were typically depicted sitting on their thrones, wearing a crown and the Royal regalia.
Automobiles have evolved a lot since the late 19th century.
The structure of fortresses developed together with military technology.
Soldiers of the ancient Macedonian Kingdom were dreaded warriors.
A zither is one of the typical instruments of Hungarian folk music, played by strumming or plucking the strings.
Wines of the Tokaj wine-growing region are well known worldwide.
The Avars established a stable empire in the Carpathian Basin between the 6th-8th centuries.
A crystalline compound found in nucleic acids, coenzymes, nucleotides and nucleosides.
A disaccharide formed by the joining of two alpha-D-glucose molecules.
The first member in the homologous series of alkanes.
The third member in the homologous series of straight-chain alkanes.
The simplest saturated alcohol. A highly toxic compound, easily confusable with ethanol.
The best known alcohol, important in the food industry.
A triol that is often used as an ingredient of creams and ointments.
Colourless, heavier-than-air gas with a pungent odour. It forms white fumes in moist air.