This is ''Het witte huis'' (The white house). This was the very first skyscraper in The Netherlands and some say in all of Europe (although that is largely considered to be the Boerentoren in Antwerp ,finished in 1931). Build between 1897 and 1898, it is, like the City hall, one of the few buildings (in the city center) that survived the Rotterdam Blitz on the 14th of may 1940.

I am working on an interior for the building, but that will take some time to finish.

(on a side note; the buildings left of ''Het witte huis'' currently houses the museum of the Royal Dutch marines, who defended the city for four days, after which the city surrendered)