As this site can now be easily visited with a guided tour on the weekends (one tour each on Saturday and Sunday), I decided to extend a long weekend in Belgium with a trip to Rotterdam. You need to register and pay in advance at the Urban Guides site, even though when I showed up, nobody checked the print-out ticket. There were at least 30 people there, and the 2 guides divided them into a Dutch- and an English-speaking group (the latter just a handful of people). The female English-speaking guide was a professional architect who did a good job of explaining the history and the architectural importance of the factory. The tour lasts over an hour and takes you to most parts of the building. The reason why tours only take place on weekends is because there are several companies with offices there, and the city of Rotterdam seems to promote Van Nelle as a workplace again (although they seem to be IT companies and not related to tea, coffee, or tobacco...). All in all, it was an interesting experience and, although I'm not the biggest fan of modern architecture, I think the inscription of the Van Nelle Factory is justified because of its architectural value and as a symbol of trade and commerce.