Ziggurats were typical terraced step pyramids used as temples in ancient Mesopotamia.
HMS Dreadnought revolutionised battleship-building in the 20th century.
Farmhouses in the Middle Ages were simple, single-storey structures built from earth, mud and wood.
The Apache attack helicopter, named after an American Indian tribe, was developed for the United States Army.
Static warfare was one of the characteristics of WWI
Large construction sites provide archaeologists searching for artefacts with a great deal of work.
Atmospherical nitrogen is bound by bacteria and used by living organisms in the form of various compounds.
A mobile, nuclear-capable ballistic missile developed at the end of the Cold War.
Spitfire was a legendary British single-seat military aircraft used in World War II.
The German liquid-propellant rocket, developed during WWII, was the first known man-made object to reach space.
The ´Flying Fortress´ was developed for the United States Army Air Force by Boeing
The Earth's continents have been in constant motion during the history of the planet.
One of the largest marsupials.
Schooners, first built in the Netherlands in the 17th century, were mainly used as merchant ships.
From the 1940s, the increasingly large aircraft carriers became the masters of the oceans.
A bireme is a type of ancient warship, with a characteristic pointed bow and two decks of oars, used by many armies.
The German triplane was perhaps the best known plane in World War I.
Robert Fulton American engineer created the first operational steam-powered ship.
Extinct proboscidea closely related to today's elephants, often hunted by prehistoric man.
Wind power stations convert the kinetic energy of the wind into electricity.