Look up and take in Toren OP Zuid, one of the most striking buildings in the area. See if it's possible to climb to the top and watch life go by from way up high.
You'll have sightseeing choices galore when spending time in Feijenoord. Toren OP Zuid is a great place to kick off here, but there are loads of other interesting spots to enjoy. Erasmus Bridge, Euromast, and Blijdorp Zoo are near the architectural wonder and will top off your day nicely.