Miniworld is a nice place to visit with family or friends. We each used our RotterdamPas membership…read moreand so its free admission for us. Otherwise, admission is currently 14.70 Euro per person.
You'll get to see miniature models of Rotterdam's landscape, such as the Erasmusbrug bridge, Euromast, Stadhuis (City Hall building), Rotterdam Centraal Station, and etc. You can spend about 30+ minutes here to browse the entire exhibits. They are also constructing a miniature version of Great Britain in the lower level, but it will probably take a few more years to complete.
Overall, it's a cool tourist attraction to check out while in Rotterdam. It's also a five minutes walk from Rotterdam Central Station.