Rotterdam is one of the more modern and bigger cities in the Netherlands. Much of the infrastructure and old buildings were destroyed during bombings in World War II and so much of the city has been rebuilt. Rotterdam is home to one of the largest ports in the world.
In order to register with the municipality, you can visit the Rotterdam gemeente office. You should make an appointment and bring the documents you need with you. You can also do a number of things online so be sure to check out the homepage of the Rotterdam city site to find out more information (sorry, the site's currently only in Dutch).
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