Day #4 Kinderdijk / Brussel

https://www.kinderdijk.com/ official site

Luggage storage when reach Rotterdam
https://bagbnb.com/luggage-storage/rotterdam?ac=532&subac=c:gad-to:en-ct:pr-lt:ml&gclid=Cj0KCQjw9JzoBRDjARIsAGcdIDV-y_McQllaNWnr3YIXyAK4Y6gK28pUd62YzMO8Vb-rIANWkMtiPH0aAjTpEALw_wcB

Rotterdam Centraal station map
https://www.ns.nl/stationsinformatie/rtd/rotterdam-centraal/plattegrond

Brussel 1 day trip
http://www.citysightseeingbrussel.be/en/routes-eng

1. Grand Palace
2. Belgian Comic Strip Center - Herge - Tintin;s father
3. Cathedral of Saint Michael and Gudula
4. Royale Palace