Technology
Construction
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Construction
People have constructed buildings from ancient times as homes to provide shelter, monuments or places of worship. Earth, wood and stone have always been used as building materials...
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Bridges
Bridges have been used since ancient times to span deep ravines, rivers and other stretches of water. Modern bridges are built using steel and concrete. They may carry roads or...
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Roads
A road is a wide route or passageway which has been smoothed and often surfaced to allow people, animals or vehicles to travel more easily across the ground. Roads can be...
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Skyscrapers
Skyscrapers are very tall buildings, usually more than 20 storeys high. Their weight is supported by a steel frame rather than outside walls. They are a feature of many large...
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Tunnels
A tunnel is an underground passageway which is dug, blasted or bored out of the ground. A tunnel is needed, for example, when a road, railway or canal has to pass under an obstacle...
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Buildings and bridges A-Z
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Construction A-Z