Rotterdam's World Database of Happiness and other fun sites

We're planning for our trip to Europe and I was listening to one of the old audiobooks that I enjoyed awhile back titled the The Geography of Bliss: One Grump's Search for the Happiest Places in the World. The author highlights the World Database of Happiness, which is in Rotterdam at Erasmus University.  http://worlddatabaseofhappiness.eur.nl/

Since we're going to Delft I wonder if we could break away for a day and go visit.

Another place I came across on the internet in Rotterdam is the following housing which ranks 22nd on the World's Strangest Buildings.