Bridges are structures designed to overcome obstacles.
These obstacles may be of a natural kind, such as rivers or canyons, but also artificially built, for instance motorways or railway lines.
Bridges are not only used as ways of transportation but also carry supply facilities, such as water pipes, across terrain surfaces.
Bridges not only connect shores but always also people and cultures.
Bridges are important for trade, used to be prerequisites for the development of large cities and bear witness to excellent craftsmanship and engineering.
Bridges are fascinating structures and have become indispensable and a matter of course for us humans.