This interactive map shows the height of all the buildings in the Netherlands.
The information comes from the product 3D gebouwhoogte NL from the Kadaster.
Later on I added a scroll story, which shows some information about the highest buildings in the Netherlands. Here we show some information about the geographic information this app is based on.
At Foss4G-NL 2018 my map was used as the background for their promotion materials! Matthew Petroff build a tool print maps to export MapboxGL maps to hight resolution images for printing. I forked this tool to insert my own map on order to export a high resolution image to make the banner from.