Soda Factory, Schiedam
We went to visit the factory with the Urban Photo Collective.
The factory was built around 1800. The last years it has been completely neglected but now a number of people are trying to collect funds, restore it and give it a new destination. Check http://www.sodafabriek.nl for the details (in Dutch only).
The building is normally closed. Don't go in there on your own. It's very dangerous!