The theatre that has a distinctive shape and excellent acoustics was situated at the side of the Acropolis in Athens.
This animation demonstrates the development of the human embryo and foetus.
Soviet labour camps (Gulags) were located far from inhabited areas.
The two groups of angiosperms are monocots and dicots.
The Olympian gods in ancient Greek mythology were as diverse as humans.
The formation of the Sun and the planets started with the contraction of a dust cloud about 4.5 billion years ago.
This animation compares the life cycles of mosses and ferns, helping to understand the general life cycle of plants.
Before the emergence of motorised vehicles, letters and parcels were delivered by horse-drawn mail coaches.
This animation demonstrates how a turbojet engine works.
Chameleons are reptiles with an ability to change their colours.
Darwin's legendary voyage aboard HMS Beagle played a crucial role in the development of the Theory of Evolution.
The first commercially successful technique of photography was invented by the French Louis Daguerre.
The train operates between Paris and southern Germany, its cruise speed is 320 km/h.
This animation demonstrates the structure and operation of CT scanners.
The spinal cord is the part of the central nervous system, running inside the spine, from which spinal nerves branch out.
This animation shows how trees change throughout the seasons, demonstrated by the example of English oaks.
The large intestine is the last section of our digestive track.
A Zeppelin is a type of rigid-framed airship.
Mitosis is the process by which a eukaryotic cell divides into two cells, and the number of chromosomes remains unchanged.
Hotspots are areas of the Earth´s crust where magma often rises to the surface and causes volcanic activity.