Extending 135 km around the city of Amsterdam, this defence line (built between 1883 and 1920) is the only example of a fortification based on the principle of controlling the waters. Since the 16th century, the people of the Netherlands have used their expert knowledge of hydraulic engineering for defence purposes. The centre of the country was protected by a network of 45 armed forts, acting in concert with temporary flooding from polders and an intricate system of canals and locks.
2. Seventeenth-Century Canal Ring Area of Amsterdam inside the Singelgracht
Keizersgracht 572, 1017 EM Amsterdam, Netherlands
PEOPLE ARE SAYING:
The historic urban ensemble of the canal district of Amsterdam was a project for a new ‘port city’ built at the end of the 16th and beginning of the 17th centuries. It comprises a network of canals to the west and south of the historic old town and the medieval port that encircled the old town and was accompanied by the repositioning inland of the city’s fortified boundaries, the Singelgracht. This was a long-term programme that involved extending the city by draining the swampland, using a system of canals in concentric arcs and filling in the intermediate spaces. These spaces allowed the development of a homogeneous urban ensemble including gabled houses and numerous monuments. This urban extension was the largest and most homogeneous of its time. It was a model of large-scale town planning, and served as a reference throughout the world until the 19th century.
The Beemster Polder, dating from the early 17th century, is is an exceptional example of reclaimed land in the Netherlands. It has preserved intact its well-ordered landscape of fields, roads, canals, dykes and settlements, laid out in accordance with classical and Renaissance planning principles.