Interactive video completed

Score screen

You have completed this interactive video.

You completed (a part of) this interactive video. Here you can see your (preliminary) results.

/ 100%

Percentage to succeed

Buffering
0:00 0:00

Why is the Netherlands flat?

Eric Wagemans


The Dutch Grebbe mountain, the Sint-Pieters mountain and the Vaalser mountain all have one thing in common: they're not mountains. Because geographers ...