 The Kalverstraat is also the most expensive street in the Dutch version of Monopoly.After the construction of the medieval city walls, the street between Munttoren (originally a gate in the city walls) and Spui square came to be known as "Byndewyck".The street later became known as Kalverstraat ("calf street"), after the cattle market that was held here from 1486 until 1629.