Combine a private tour of Rotterdam, city of the future, with the wonders of the 18th-century windmills of Kinderdijk. Climb the Euromast to have an amazing view of the largest port of Europe and visit a working windmill to learn about 700 years of water management. Rotterdam is the Dutch center of landmarks and experimental architecture. After bombings destroyed the entire heart of Rotterdam during World War II, the Dutch rebuilt the city and Rotterdam developed into Europe’s largest port from which the city earns the title ‘Gate to the World’. The windmills of Kinderdijk, meaning ‘Children’s Dike’, represent exactly that. These 19 windmills were built around 1740 to drain the Polder and prevent the land from flooding. Kinderdijk is the largest concentration of such old windmills in the Low Lands and have been on the UNESCO World Heritage List ever since 1997.