Prinsengracht Amsterdam (Prince's Canal)

Prinsengracht is the third and outermost of the three main canals of Amsterdam. Together, these three canals form the "fourth outlay" of the city, an expansion project that was started in the year 1612 and took 50 years to build. When it was completed, the city had grown to 4 times its original size. During the 17th century, the population grew from 50.000 to 200 000, which made it the 3rd biggest city in the world in those days, after London and Paris. Since 2009, the three main canals have been placed on the World Heritage list.